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Edited by Saïd Zouhdi | University Paris-Sud, France

February 2nd, 2010 meta10.lgep.supelec.fr

Contents

Organizers ............................................................................................ 4

Supporters & Sponsors.......................................................................... 4

Venue .................................................................................................... 5

Social events ......................................................................................... 5

Guidelines for presenters...................................................................... 5

Program overview .................................................................................7

Technical program.................................................................................8

META’10 Organizers

META’10 General Chair S. Zouhdi, University of Paris Sud, France

META’10 General co-Chair Hadia Elhennawy, Ain Shams University, Egypt

Organizing Committee A. Safwat, Ain Shams University, Egypt I. A. Eshrah, Cairo University, Egypt T. M. Abuelfadl, Cairo University, Egypt L. Santandrea, CNRS, France I. El-Kady, Sandia National Laboratories, USA

International Advisory Committee A. Boardman, UK I. El-Kady, USA N. Engheta, USA M. Fink, France S. He, Sweden M. Inoue, Japan T. Itoh, USA Y. Kivshar, Australia Y.-H. Lee, Korea

L.-W. Li, Singapore R. Marques, Spain O. E. Martinez, Argentina G. Milton, USA S. Noda, Japan M. Notomi, Japan Y. Rahmat-Samii, USA V. Shalaev, USA Ari Sihvola, Finland

M. Stockman, USA S. Tretyakov, Finland D. P. Tsai, Taiwan Y. Vardaxoglou, UK A. Vinogradov, Russia M. Wegener, Germany X. Zhang, USA N. Zheludev, UK R. W. Ziolkowski, USA

Technical Program Committee T. M. Abuelfadl, Egypt M. Ahachad, Morocco T. Akalin, France X. Begaud, France Y. Bernard, France F. Capolino, USA R. Dkiouak, Morocco N. El Minyawi, Egypt A. El Sherbeni, USA V. Fouad Hanna, France J. Garcia de Abajo, Spain

S. Hrabar, Croatia R.-B. Hwang, Taiwan M. M. Ibrahim, Egypt N. P Johnson, UK D. Khalil, Egypt P. Lalanne, France S. Maier, UK F. Martin, Spain A. Nicolet, France D. Pawlak, Poland A. Priou, France

S. Prosvirnin, Ukraine C.-W. Qiu, Singapore A. Razek, France A. Safwat, Egypt A. Schuchinsky, UK C. Sibilia, Italy C. Simovsky, Finland T. Szoplik, Poland S. Tedjini, France A. Zaghloul, USA A. B. Yakovlev, USA

Special Session Organizers T. Akalin, France X. Begaud, France A. Chipouline, Germany

I. El-Kady, USA S. He, Sweden S. Maier, UK

F. Martin, Spain A. Vinogradov, Russia

Supporters & Sponsors NATO Science for Peace & Security, Belgium European Office of Aerospace Research & Development, UK Office of Naval Research Global, UK US Army International Technology Center, UK GDR Ondes, France SUPELEC, France Optical Soceity of America, USA IOP Publishing, UK EPL, UK CST Middle East, Egypt

Smart Communication, Egypt COMSOL Multiphysics, Egypt European Optical Society, Germany IEEE-APS, USA IEEE-MTT, USA URSI, Belgium Ain Shams University, Egypt Embassy of France in Egypt - CFCC, Egypt VI METAMORPHOSE, Belgium ASTF, UAE

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Venue

META'10 will be held on February 22-25, 2010, at Cairo Marriott Hotel, Cairo, Egypt.

Social events

Pyramids Sound and Light Show On February 23rd evening, don't miss the world-famous Pyramids Sound and Light Show in Giza! (Departure from Marriot at 5:00 PM)

Conference Banquet A Dinner & Show cruise on the Nile River with a city view at night will be held on February 24th. A dinner buffet will be served on board with folklore entertainment, music and Belly dancer show.

Full day excursion On February 25th morning, join us for a full-day excursion with a visit of the Egyptian Museum, Pyramids and Sphinx.

Guidelines for presenters

Oral Presentations

Each session room is equipped with a stationary computer connected to a LCD projector. Presenters must load their presentation files in advance onto the session computer. Technician personnel will be available to assist you.

Scheduled time slots for presentation are 15mn for regular prensentations, 20mn for invited presentations and 30 mn for keynote talks, each, including questions and discussions. Presenters are required to report to their session room and to their session Chair at least 15 minutes prior to the start of their session.

The session chair must be present in the session room at least 15 minutes before the start of the session and must strictly observe the starting time and time limit of each paper.

Poster Presentations

Presenters are requested to stand by their posters during their session. One panel will be available for each poster. Pins or thumbtacks are provided to mount your posters on the board. All presenters are required to mount their papers one hour before the session and remove them at the end of their sessions.

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FACILITY MAPS

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PROGRAM OVERVIEW

Mon Feb 22 Tue Feb 23 Wed Feb 24

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Sun Feb 21

Thu Feb 25

08:00 Registration Registration

08:15 Registration 08 :30 08:45 09 :00 Plenary session IV

09 :15 Opening ceremony Plenary session III 09 :30

09 :45 10 :00 Plenary session I Coffee break 10 :15 & 10 :30 Coffee break Coffee break Poster session IV 10 :45 & & 11 :00 Poster session I Poster session III 11 :15 11 :30 11 :45 12 :00 12 :15 12 :30

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TECHNICAL PROGRAM

Sunday February 21, 2010 10:00 – 18:00 Aida Ballroom Foyer

Registration

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Monday February 22, 2010 08:00 – 09:00 Aida Ballroom Foyer

Registration

09:00 – 10:00 Aida Ballroom

Opening ceremony


Plenary session I

Chaired by: Osman Lotfi

10:00 Keynote talk Linear and nonlinear elements in metactronics N. Engheta

Abstract: We present an overview of our recent results in exploring the role of nonlinearity in metactronics – metamaterial-inspired optical nanocircuitry. We show how nonlinear optical materials when combined with the plasmonic phenomena provide nonlinear optical circuit elements in metactronics, thus expanding the domain of metactronics from linear to nonlinear lumped circuit elements.

10:30 – 11:30 Aida Ballroom Foyer

Coffee break & Poster session I

Chaired by: Samel Arslanagic

A1 Light scattering by an array of nanoparticles with electric and magnetic properties Braulio García-Cámara, Fernando Moreno, Francisco González and Olivier J.F. Martin

Abstract: Light scattering by an array of nanoparticles with alternating electric and magnetic properties is studied. Under certain geometrical and optical conditions, the scattering pattern presents the well-known diffractional lobes but modified by a lack of backscattered intensity.

A2 Analytical Formulation of the Radiation Field of Printed Antennas in the Presence of Artificial Magnetic Superstrates

Hussein Attia, Leila Yousefi, Omar Siddiqui and Omar M. Ramahi

Abstract: In this paper, the reciprocity theorem and transmission line model are used to develop an analytical solution for the radiation field of a microstrip patch antenna loaded with a novel artificial magnetic superstrate.

A3 Microstrip Antenna with EBG/PBG substrate H. C. C. Fernandes and J. K. L. Araújo

Abstract: In this new work, the parameters of the microstrip antenna, especially when they are on EBG (electromagnetic band gap) and PBG (Photonic band gap) substrates, the quality factor and the irradiation diagram for the E-Plane, are analyzed. New numerical computational results are shown, and comparisons are made with the specialized literature.

A4 One-dimensional photonic superlattices containing a metamaterial: electric/magnetic plasmon polaritons and absorption effects

D. Mogilevtsev, E. Reyes-Gómez, S. B. Cavalcanti, C. A. A. de Carvalho, and L. E. Oliveira

Abstract: We analyze one-dimensional photonic superlattices with alternated slabs of widths a and b composed of positive (na>0) and negative (nb<0) refractive indices, the latter being dispersive, i.e., nb=nb(w).

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A5 New surface plasmon polariton photodetectors based on diffraction gratings with anticorrelated relief

S. V. Mamykin, M. L. Dmitruk, M. V. Sosnova, A. V. Korovin and V. I. Mynko

Abstract: Surface plasmon polariton photodetectors based on the gratings with antocorrelated relief have been proposed for the first time. Spectral dependence of light reflectance as well as photocurrent shows peculiarities connected with excitation of surface plasmon polaritons.

A6 Plasmonic sensing of surface phonon-polaritons F. Neubrech, D. Weber, J. Bochterle, D. Enders, T. Nagao, and A. Pucci

Abstract: Resonant coupling between antenna resonances and surface phonon-polaritons of a thin dielectric SiO2 layer beneath the nanoantennas produces strong Fano-type SiO2 signals in the relative infrared (IR) transmittance spectrum. In contrast to weakly IR active vibrations, the signal appears at the surface phonon-polariton frequency of the SiO2 layer and not at the transverse optical frequency.

A7 Designing a GaAs Photonic Crystals narrow band filter A. boudissa, M. Benslama

Abstract: In this research, we propose new type of photonic crystal narrow band filter this is based to study the coupling between the line defect and point defect in a two-dimensional photonic crystal (2D-PhC).

A8 Wideband compact EBG structures with magneto-dielectric materials for low-profile wire antennas

M. Arghiani, A. R. Attari

Abstract: New compact electromagnetic bandgap (EBG) structures operating at lower GHz frequencies (below 4 GHz) are studied. These EBG structures are designed on magnetodielectric materials to enhance the bandwidth of EBG structures to construct low-profile wire antennas.

A9 Sensitivity enhancement in optical waveguide sensors using metamaterials S. A. Taya and M. M. Shabat

Abstract: We consider a four-layer waveguide structure as an optical waveguide sensor. One of the layers is a metamaterial with negative permittivity and permeability. We show that the sensitivity of the proposed optical waveguide sensor can be dramatically enhanced by using the metamaterial between the guiding and the cladding layers. The variation of the sensitivity of the proposed waveguide sensor with different parameters of the waveguide is studied.

A10 Rectangular Patch Antennas over Electromagnetic Band Gap Structure Nihal Fayze

Abstract: In this paper, I propose a new design of a Defected Structure (DS) for use as an Electromagnetic Band Gap (EBG) configuration for printed antennas and circuit applications. The proposed defected structure embodies a honeycomb lattice of air cylindrical holes.

A11 Spatial Solitons in Periodic Nano-Structures A. V. Gorbach and D. V. Skryabin

Abstract: We present the first-principles theory of the existence and stability of TE and TM spatial solitons in a sub-wavelength periodic semiconductor-dielectric structure.

A12 Tunable plasmons on stretchable elastomeric substrates F. M. Huang, R. M. Cole, S. Mahajan, and J. J. Baumberg

Abstract: A range of plasmonic nanostructures are fabricated on stretchable elastomeric substrates. Such nanostructures support plasmons which have energies and field distributions that are strongly dependent on the structure geometry or positions.

A13 Engineering SERS via absorption control in novel hybrid Ni/Au nanovoids R. M. Cole, S. Mahajan, F. M. Huang, P. N. Bartlett, and J. J. Baumberg

Abstract: Nanoscale voids embedded in gold films possess plasmon modes with a strong field component at the cavity entrance, radically different to nanoparticle plasmon modes. By creating

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Ni/Au hybrid rim nanostructures, we show how selective coupling to void plasmons provides strong electric field enhancements leading to large surface-enhanced Raman scattering (SERS) signals from molecules adsorbed on the nanovoid film.

A14 Large polarization rotation and enhanced transmission of chiral gammadion gratings A. Lehmuskero, B. Bai, J. Laukkanen, and J. Turunen

Abstract: We propose a chiral grating composed of gold thin film with gammadion-shaped holes. This grating has both enhanced transmission, polarization rotation, and a change in the ellipticity at the same time. With this grating, artificial optical activity, which is not originally possessed by the composing materials, can be produced and largely enhanced by various optical resonance effects in the nanostructures.

A15 Broad bandwidth transmission through a single metamaterial C. A. M. Butler, J. R. Sambles A. P. Hibbins, and P. A. Hobson

Abstract: A single layer of metallic subwavelength mesh clad in dielectric is illuminated by collimated microwave radiation normally incident to the surface. The spectrum obtained shows a pass band of near complete transmission across the frequency range 7–15 GHz. Numerical modelling reveals that standing waves in the dielectric layer couple via evanescent fields supported in the square subwavelength holes of the metallic mesh.

A16 Extraordinary transmission through subwavelength slits and role of surface plasmon polaritons

V. E. Babicheva and Yu. E. Lozovik

Abstract: Extraordinary transmission of electromagnetic wave through an array of subwavelength slits in a metal film is considered. Comparison of results of numerical simulation, theoretical model and semi-analytical model based on Fabry-Perot formula is presented. It is concluded the validity of single-mode approximation described by Fabry-Perot formula. All characteristics of extraordinary transmission are completely described by single-mode approximation. Mechanisms responsible for this effect are analyzed.

A17 TM scattering by a perfect electromagnetic conducting strip A.-K. Hamid and M. I. Hussein

Abstract: An exact solution to the problem of scattering of a plane electromagnetic wave by an infinitely long perfect electromagnetic conducting (PEMC) strip is obtained using the method of separation of variables. The scattering widths of the strip can be either maximized or minimized by choosing appropriate values of the PEMC admittance.

A18 Electromagnetic response of a slit di raction grating embedded in a dielectric slab via an equivalent circuit model

R. Rodriguez-Berral, F. Mesa, and F. Medina

Abstract: This paper provides an equivalent circuit model to characterize the electromagnetic transmission properties of an array of slits sandwiched between a pair of dielectric slabs. The presence of the dielectric slabs makes the electomagnetic spectrum much more complex than that without slabs. Fortunately, all the details of the spectrum can be accounted for by adding appropriate lumped and distributed elements to a previous equivalent circuit presented by some of the authors, which was valid for free standing di raction gratings.

A19 CSRR configurations in Stripline Technology J. Illescas, A. Estevez, A. Marcotegui, M. Beruete, M. Navarro and F. Falcone

Abstract: In this work, several inclusions of Complementary Split Ring Resonators embedded in Stripline planar transmission line are presented. Full wave simulation from an in-house FDTD code as well as measurement results are presented.

A20 The optical characteristics of planar bi-layered metallic prisms K. Yamaguchi, M. Fujii, T. Inoue, M. Haraguchi, T. Okamoto and M. Fukui

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Abstract: A planar bi-layered silver prisms with rounded corner is shown to have a singular optical mode depends of gaps by numerical simulation. Such behavior results from the plasmon resonance in the pairs of nano prisms both the electric and the magnetic components of light.

A21 Design of an optical hyperlens with metallic nanocylinders A. Tuniz, P. Chen, S. C. Fleming, and B. T. Kuhlmey

Abstract: We present the design of an optical hyperlens composed of metallic nanocylinders embedded in a dielectric medium.

A22 Wave transformation in plasma sphere after its instant formation T. E. Remayeva, A. G. Nerukh, and N. K. Sakhnenko

Abstract: The transformation of a plane harmonic wave caused by instant creation of a plasma sphere is investigated. The exact expressions for the transformed field are obtained by virtue of the solution of an initial and boundary value electromagnetic problem for Maxwell’s equations.

A23 Surface plasmon enhanced emission from InGaAs quantum wells by nano-patterned metal dots

N. Xiang, K. H. Tung, and A. J. Danner

Abstract: We report our experimental investigations on the emissions from InGaAs quantum wells (QWs) by covering the sample surface with nano-patterned metal dots. A non-lithographic method, which uses the anodized aluminum oxide (AAO) as a template, is employed in the nano-patterning. Photoluminescence (PL) spectra from samples with different surface conditions are compared.

A24 Subwavelength electromagnetic near-field imaging of point dipole with metamaterial nanoslab

T. Hakkarainen, T. Setälä, and A. T. Friberg

Abstract: We carry out a detailed, theoretical analysis of near-field imaging of a point dipole by a lossy, nano-scale metamaterial slab. We derive an analytical expression for the dipole electric field transmitted through the slab, and study numerically the imaging properties, e.g., resolution and brightness, of this system.

A25 Normalized characteristics of the photonic bandgaps in two-dimensional photonic quasicrystals with a 8-fold (or square) lattice by FDTD simulation

Jong-Bin Yeo, Woo-Sik Lim, and Hyun-Yong Lee

Abstract: In this paper, we propose a concept of optical coverage ratio (OCR) as a new structural parameter to determine the PBGs for E-polarized light. The OCR is an optically compensated filling factor. It is possible to normalize the PBGs of 2D PCs by introducing the OCR.

A26 Corner modes and edge modes on surface plasmon polariton waveguides having right-angle metallic corners

Jia-jheng Lin, Wan-ju Tseng, and Hung-chun Chang

Abstract: Using a finite-element imaginary-distance beam propagation method, surface plasmon polariton modes, including corner modes and edge modes, guided on plasmonic waveguides having right-angle metallic corners are accurately analyzed. The propagation length obtained from the imaginary part of the modal propagation constant is calculated. It is found that for the metallic stripe waveguide, edge modes should be paid attention to in addition to the reported bound modes.

A27 Effective parameters of metamaterial substrate: analytical and semi-analytical methods W. Abdouni, A. C. Tarot, A. Sharaiha

Abstract: The metamaterial substrate is constructed of periodic resonant loop circuits embedded in a low dielectric host medium. These resonant loops modify the effective parameters εeff and μeff. A new geometry of metamaterial substrate in 3D is used. An analytical method is developed to extract the effective parameters of metamaterial structure. The results are then compared to the ones obtained with a semi-analytical method (Inversion Method). A good agreement was found.

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11:30 – 13:00 Amneris

Session 1A

Plasmonics

Chaired by: Nikolay Zheludev and Essmat Abalah

11:30 Keynote talk Contribution of surface phonon polaritons to radiative heat transfer at the nanoscale E. Rousseau, A. Siria, G. Jourdan, S. Volz, F. Comin, J. Chevrier and J.J. Greffet

Abstract: It is usually taken for granted that the radiative flux has an upper bound given by the blackbody radiation. Yet, the radiative heat transfer between two parallel surfaces can be enhanced by several orders of magnitude at the nanoscale. The enhancement is particularly important when surface phonon polaritons can be excited. In this paper, we report the first quantitative comparison between data and theory.

12:00 Non radiative energy transfer of quantum dots to plasmonic nanoparticles P. Viste, J. Plain, R. Jaffiol, A. Vial, P. M. Adam, P. Royer

Abstract: In this contribution, we will focus both on the influence of MNP size and on the luminescent species to MNP distance.

12:15 Exciting tunable dark resonances in plasmonic nanocrosses Niels Verellen, Pol Van Dorpe, Guy A. E. Vandenbosch, Victor V. Moshchalkov

Abstract: Localized surface plasmon resonances in gold nanocross geometries are studied numerically using the finite difference time domain (FDTD) method. It is shown that two- and three-armed crosses sustain pronounced dark multipolar resonances tunable by changing arm angle and length. When coupled to a gold slab subradiant modes and Fano interferences appear.

12:30 Hybrid plasmonic components: waveguides, couplers and splitters Jie Tian, Zhe Ma, Qiang Li, Yi Song, Qing Yang, Limin Tong, and Min Qiu

Abstract: Light transport in two-dimensional disordered metamaterials made of high-permittivity rods is studied theoretically. Distinct regimes of transport are identified and explained in terms of coupled electric and magnetic dipolar resonances. The dielectric optical features of the structure are found to be weakly perturbed by structural disorder and light propagation at frequencies close to the magnetic dipole resonance is shown to rely on hybrid, necklace-like, states

12:45 Investigation of coupling length in a semi-cylindrical surface plasmonic coupler Pouya Dastmalchi, Nosrat Granpayeh, and Majid Rasooli Disfani

Abstract: We have investigated the performance of a nano-optical directional coupler based on gap plasmon waveguides. The coupler consists of two waveguides having a localized coupled plasmon propagating between two semi-cylindrical surfaces.

11:30 – 13:00 Radames

Session 1B

Photonic and magnonic crystals

Chaired by: Susumu Noda and Mahmoud Hanafi Ahmed

11:30 Highly birefringent photonic crystal fibers and its applications Yu.K. Chamorovskiy, V.P. Gubin, S.K. Morshnev, S.A. Nikitov, M.V. Ryabko, N.I. Starostin, I.L. Vorob’ev

Abstract: We demonstrate for the first time to our knowledge the simple structure of 6 air holes ith extremely high value of the group birefringence 2*10-2 at 1600 nm and passive losses as low as 2 dB/km and use such photonic crystal fiber in optical current sensor.

11:45 A “temporal photonic crystal”: optical response of a slab whose dielectric constant varies periodically in time P. Halevi and Jorge R. Zurita-Sanchez

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Abstract: This talk concerns a dynamic medium whose dielectric constant ε(t) is a periodic function of time, namely, ε(t) = ε(t + T), where Ω = 2π/T is the modulation frequency. Such a“temporal photonic crystal” displays a photonic band structure ω(k) that is periodic in ω and exhibits band gaps in k.

12:00 Enhanced broadband optical transmission in metallized woodpiles

R. Malureanu, A. Alabastri, W. Cheng, R. Kiyan, B. Chichkov, A. Andryieuski and A. Lavrinenko

Abstract: We present an optimized isotropic metal deposition technique used for coating three-dimensional polymer structures with a 50nm smooth silver layer. The technology allows fast isotropic 3D coating of complex dielectric structures with thin silver layers. Transmission measurements of 3D metallized woodpiles reveal a new phenomenon of enhanced optical trans-mission in broadband range (up to 300 nm) in the near IR.

12:15 Spin-wave propagation in a microstructured magnonic crystal A. V. Chumak, P. Pirro, A. A. Serga, M. P. Kostylev, H. Schultheiss, K. Vogt, S. J. Hermsdoerfer, B. Lägel, P. A. Beck, and B. Hillebrands Abstract: Transmission of spin waves through a magnonic crystal fabricated from a Permalloy (Py) waveguide with a periodically variable width was studied experimentally and theoretically. The spin wave characteristics were measured by spatially-resolved Brillouin light scattering mi-croscopy. Rejection frequency band was clearly observed.

12:30 Keynote talk Magneto and multiferroic photonics and their applications to spatial light modulators

M. Inoue, H. Takagi, T. Goto, H. Sato, A. Kume, P. B. Lim and A. V. Baryshev

Abstract: Overall description on the fundamental properties of magnetophotonic crystals and multiferroic crystals as well as their representative applications in spatial light modulators will be discussed in detail.

11:30 – 12:45 Ramfis

Session 1C

Near-field optics and imaging

Chaired by: Concita Sibilia and Nagda Elmenyawy

11:30 Near-field optical microscopy on oxide-based perfect lenses S. C. Kehr, Y. M. Liu, L. W. Martin, X. Zhang, L. M. Eng, and R. Ramesh

Abstract: We study the evanescent field distribution in the image plane of an oxide-based perfect lens by means of a scattering-type near- field optical microscopy in combination with a free-electron laser in the mid-infrared wavelength range.

11:45 Palladium sub-wavelength hole arrays for hydrogen sensing E. Maeda, S. Mikuriya, M. Shuzo, I. Yamada, and J.-J. Delaunay

Abstract: An hydrogen detection scheme based on the wavelength shift of the main resonance mode of sub-wavelength rectangular hole arrays of palladium exhibiting the extraordinary transmission effect is discussed on the basis of simulation and experimental observation.

12:00 Keynote talk Tunable THz range transmission in metallic hole array Yalin Lu

Abstract: Extraordinary transmission properties in the terahertz (THz) frequency range from metallic hole arrays having different aperture shapes and a varying channel structure have been reviewed. The surface aperture to be studied changes from circular to rectangular, and the through-channel uses a new converging-diverging channel design. Changing the aperture shape adds a unique polarization-selective capability when using as potential filters for THz waves, and the use of the new converging-diverging channel design re-shapes the transmission spectrum, which provides a unique spectral distinctivity and a near flat-top transmittance via the structural manipulation. Additional means to

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realize both frequency and transmittance tuning are discussed. Similar concepts to be used for solar cells are also discussed.

12:30 Progress in metal-dielectric composite superlenses Mark D. Thoreson, Jieran Fang, Zhengtong Liu, Vladimir P. Drachev, Alexander V. Kildishev, Vladimir M. Shalaev and Alexandra E. Boltasseva

Abstract: Using both numerical and experimental approaches, we have studied nanoscale metal-dielectric composite mixtures as tunable near-field superlenses. Such superlenses have applications in sub-diffraction lithography, enhanced remote biosensing, and super-resolution imaging.

11:30 – 12:35 Amonasro

Session 1D

Metamaterial-inspired devices, components, and antennas

Chaired by: Mahbub Hoque and Martin Wegener

11:30 Invited Single-layer metal nanolenses with tight foci in far-field Piotr Wróbel, Tomasz J. Antosiewicz, Jacek Pniewski, Tomasz Szoplik

Abstract: In a numerical experiment we analyse performance of plasmonic nanolenses made of a single metal layer. Due to radially polarized illumination lenses have foci of full widths at half maxima (FWHMs) better than half a wavelength and focal lengths of the order of a few wavelengths. We consider the nanolenses in two configurations.

11:50 A dual band thin surface wave antenna using a via-less EBG structure for on-body communication systems R. Khouri, P. Ratajczak, P. Brachatand R. Staraj

Abstract: A novel dual band 2mm-thick surface wave antenna suited for On-Body communication systems is presented. The antenna consists in an artificial ground plane excited by a center-fed circular patch and exhibits a monopole-like radiation pattern for both frequencies around 2.45 GHz and 5.5 GHz. The proposed antenna performances are evaluated thanks to a tissue-equivalent numerical phantom and compared to other existing wearable antennas found in the literature.

12:05 EBG-based gap waveguide for applications up to THz Ahmed A. Kishk, Per-Simon Kildal, Eva Rajo-Iglesias, Zvonimir Sipus, Sergej Skobelev, Stefano Maci, Alejandro Valero, Alessia Polemi

Abstract: A newly developed low loss gap waveguide has inspired an international cooperation between several research groups. The groups have developed several models for the structure and inspired novel applications in waveguides, packaging, and antennas are considered.

12:20 Sub-wavelength transmission resonances in multilayer partially-reflecting surfaces C. S. R. Kaipa, A. B. Yakovlev, F. Medina, and F. Mesa

Abstract: The phenomenon of sub-wavelength total transmission in multilayer partially-reflecting surfaces (PRS) has recently attracted the attention of researchers. In this paper, we propose simple homogenization models for the fast and accurate analysis of multilayer PRS structures. The proposed models clearly explain the physics of the transmission peaks, which correspond to the Fabry-Perot type resonances.

11:30 – 13:10 The View

Special session 1A

Active photonic crystal systems: engineering the thermal emission and radiative relaxation in quantum dots and wells

Organized by: Ihab El-Kady Chaired by: David Peters

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11:30 Invited Zero-reflection metal slabs: A mechanism of light tunneling in matematerials Guiqiang Du, Haitao Jiang, Zhanshan Wang and Hong Chena

Abstract: In the present paper, zero-reflection phenomenon in a optical thick metal (M) slab covered with one-dimensional dielectric photonic crystals (PC’s) (CD)n are studied theoretically and experimentally in heterostructures M(CD)n and sandwich structures (CD)nM(DC)n.

11:50 Invited Photonic crystal based high efficiency multispectral thermal emitters for thermo-photovoltaics Mehmet F. Su, G. B. Farfan, R. Rammohan, M. M. Reda Taha, T. S. Luk and I. El-Kady

Abstract: This work reports on Tungsten Lincoln-log PC based TPV enhancement with potential use in radioisotope thermoelectric generators (RTG) and waste heat recovery systems. The optimized PhC designs show over 200% enhancement in the emitter efficiency and 65–75% improvement in the power efficiency as compared with a blackbody emitter.

12:10 Optical properties of one-dimensional HTcSc-dielectric photonic crystals Arafa H. Aly

Abstract: We have investigated the optical properties of one-dimensional high temperature superconductingdielectric photonic crystal (HTcScDPCs) composed of superconductor and dielectric layers. The variance of the intensity and the bandwidth of the transmission and reflection are strongly dependent on the different thicknesses, different temperatures, and different incident angles.

12:25 Surface-enhanced Raman spectroscopy of CdSe quantum dots on nanostructured plasmonic surfaces J. T. Hugall, J. J. Baumberg, F. M. Huang and S. Mahajan

Abstract: Although quantum dots (QDs) are widely used as fluorophores, they have not so far been used as Raman labels or in active metamaterial devices. Here we demonstrate resonant surface-enhanced Raman scattering (SERS) of CdSe QDs attached to nanostructured plasmonic surfaces.

12:40 Gold film-terminated 3-dimensional photonic crystals B. Ding, M.E. Pemble, A.V. Korovin, U. Peschel, S.G. Romanov

Abstract: Gold film has been deposited on a surface of 3-dimensional thin film opal photonic crystal (PhC). The extraordinary transmission (EOT) bands, non-reciprocal reflectance and diffraction resonances have been observed using angle-resolved transmission and reflectance spectroscopy. Excitation of SPP modes by surface and volume eigenmodes of the photonic crystal has been discriminated.

12:55 Topological phase transition in photonic analog of graphene T. Ochiai and M. Onoda

Abstract: We investigate theoretically a topological phase transition in honeycomb lattice photonic crystals. It is controllable by time-reversal and space-inversion symmetry breaking. As a consequence of the phase transition, we show that zigzag and armchair edge states change their characteristics in accordance with the so-called bulk-edge correspondence, which was originally found in quantum Hall systems.

11:30 – 13:00 Verdi Salon

Special session 1B

Coherent phenomena in plasmonics and Metamaterials

Organized by: Stefan Maier Chaired by: Stefan Maier

11:30 Invited Plasmon-vibration coupling in field-enhanced spectroscopy J. Aizpurua

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Abstract: We study theoretically the effect of the coupling between surface plasmons and infrared vibrations in two different spectroscopic techniques. In infrared absorption, the coupling produces enhanced signal and Fano-like spectral lineshapes. In Raman spectroscopy, the coupling with nanoparticle acoustic vibrations produces new selection rules.

11:50 Invited Managing thermal emission: phonon/photon coupling using nanostructures S. A. Kemme, A. A. Cruz-Cabrera, D.A. Scrymgeour, D.W. Peters, A. R. Ellis, T. R. Carter, S.Samora

Abstract: We will discuss a passive thermal emission management surface that can manipulate the direction of emission as well as the wavelength bands of emission.

12:10 Invited The physics of light transmission through subwavelength apertures and aperture arrays John Weiner

Abstract: The passage of light through apertures much smaller than the wavelength of the incident light has proved to be a surprisingly subtle phenomenon. We report here quantitative agreement between experiment, theory, and simulation on the essential physics of the process.

12:30 Dark modes and Fano resonances in individual plasmonic nanostructures Stefan A. Maier

Abstract: This talk will outline the fundamental importance of dark modes for the design of plasmonic nanocavities with tailored radiative properties. Structures sustaining superradiant, subradiant, and Fano-like modes will be discussed.

12:45 Planar metamaterial sensor based on EIT N. Liu, M. Mesch, T. Weiss, C. Sönnichsen, and H. Giessen

Abstract: We experimentally demonstrate a planar metamaterial analog of electromagnetically induced transparency at optical frequencies. The structure consists of an optically bright dipole antenna and an optically dark quadrupole antenna, which are cut-out structures in a thin gold film. A pronounced coupling-induced reflectance peak is observed within a broad resonance spectrum. A metamaterial sensor based on these coupling effects is experimentally demonstrated.

13:00 – 14:30 Lunch


Plenary session II

Chaired by: Yahya Rahmat-Samii and Magdy Ibrahim

14:30 Keynote talk Applied metamaterials for defense Augustine M. Urbas, Steven Weiss, Mark S. Spector and Katie E. Thorp

Abstract: The DoD has launched a coherent effort to identify the range of properties accessible by metamaterials systems in an effort to map out the application potential of the emerging and dynamic research area. As examples, researchers have proposed that materials with negative effective refractive indices that are closely matched to free space and materials with values of epsilon or mu near zero could be built with suitably engineered meta-systems. The utility of these composite materials in ultra-compact antennas and signal coupling applications will ultimately be determined by secondary considerations based on the application environment and performance gain against conventional approaches. Similar modification of electromagnetic response at optical frequencies has been applied to high performance absorbers. Acoustic metamaterials are beginning to be explored for tuned mechanical responses and related structured systems for thermal transport control are being investigated. We will explore example applications of these materials systems and requirements for relevant environments. Research and development thrusts that are of interest for pushing the application of metamaterials forward will be described.

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15:00 Keynote talk Nonlinear and switchable photonic metamaterials N. I. Zheludev, A.E. Nikolaenko, Z. L. Samson, K. F. MacDonald, K. Knight, C. C. Huang, D. W. Hewak, F. De Angelis, E. Di Fabrizio

Abstract: Composite metamaterials containing nonlinear and switchable media offer a new paradigm for improving key photonic functionalities.

15:30 Keynote talk Manipulation of photons by photonic crystals— recent progress and new trends — Susumu Noda

Abstract: Photonic crystals, in which the refractive index changes periodically, provide an exciting tool for the manipulation of photons and have made substantial progresses in recent years. In this presentation, I will discuss recent progresses in photonic-crystal researches including (i) two-dimensional photonic-crystal cavities and waveguides, (ii) three-dimensional photonic crystals, and (iii) two-dimensional photonic-crystal lasers.


Coffee break & Poster session II

Chaired by: Hakeim Talleb

B1 Guidance and leakage properties of Tellegen H-guides J. R. Canto, C. R. Paiva, and A. M. Barbosa

Abstract: An isotropic nonreciprocal magnetoelectric metamaterial was suggested by Tellegen as early as 1948. A rigorous analysis of the Tellegen H-guide is presented. The approach is based on a transverse resonance method combined with a mode-matching technique. The guidance and leakage properties of the Tellegen H-guide are then analyzed and its potential applications discussed.

B2 Crystallographic-oriented metal nanowires on semiconductor surface: technology and modelling N. L. Dmitruk, T. R. Barlas, A. M. Dmytruk, A. V. Korovin, and V. R. Romanyuk

Abstract: A simple technique for synthesis of noble metal nanoparticles from corresponding salts on semiconductor substrates has been elaborated. The metal nanowires on ledges of surface microrelief of quasigrating type were obtained and modeling of their optical properties was carried out.

B3 Experiments on an ultrathin metamaterial with extraordinary low transmission in the visible range S. Dobmann, D. Ploss, P. Banzer and U. Peschel

Abstract: We present optical measurements of a metamaterial consisting of ultrathin (thickness < 40 nm) patterned metal lms which exhibits extraordinary low transmission in the visible spectral range. Unlike metal lms with a thickness in the range of 100 nm the reduction in transmission is not attributed to the excitation of surface plasmons but to an antenna effect of the individual metamaterial building-blocks.

B4 Subwavelength nondiffractting beams in multilayered media C. J. Zapata-Rodríguez, J. J. Miret

Abstract: We present a family of p-polarized radiation modes that are highly localized around the optical beam axis (OBA) and are sustained in a layered medium. The latter is comprised of a stack of thin films made of a plasma-like material with negative dielectric constant, regularly placed in a dielectric host. Excitation of surface plasmon polaritons leads to enhanced localization near the OBA.

B5 Plasmon enhanced optical trapping in the T-matrix formalism R. Saija, F. Borghese, P. Denti, P.G. Gucciardi, M.A. Iatì, and O.M. Maragò

Abstract: We apply the formalism based on the multipole expansion of the electromagnetic fields within the transition (T-) matrix approach to optical trapping of metal nanoparticles. Extension of optical trapping theory to non-spherical and aggregated metal nanostructures is also discussed.

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B6 Resonances and dipole moments in dielectric, magnetic, and magnetodielectric cylinders – an overview

A. Dirksen, S. Arslanagic, and O. Breinbjerg

Abstract: An eigenfunction solution to the problem of plane wave scattering by dielectric, magnetic, or magnetodielectric cylinders, is used for a detailed investigation of their resonances. An overview of the resonances with electric and magnetic dipole moments, needed in e.g., the synthesis of metamaterials, is given with an emphasis on their strength, bandwidth, and isolation.

B7 Modeling of surface plasmon excitation with partially coherent light using elementary field decomposition method

Heikki J Hyvärinen, Jari Turunen

Abstract: Rigorous electromagnetic analysis of the interaction of spatially partially coherent electromagnetic fields with photonic microstructures is considered. The incident field is represented as a superposition of mutually identical, fully coherent elementary fields, and the Fourier Modal Method (FMM) with the S-matrix algorithm is applied to determine the response of the photonic structure to each elementary modes. The model is applied to study the surface Plasmon excitation in a thin metallic slab.

B8 Planar wide-band 2-D isotropic negative refractive index metamaterial N. Amiri, K. Forooraghi, and Z. Atlasbaf

Abstract: In this paper a novel left-handed metamaterial composed of only conducting strips is proposed. This symmetrical 2-D isotropic structure shows a controllable super-wide and very low-loss DNG band. The negative refraction index and other constitutive parameters are obtained by simulation and parameter retrieval algorithm and exhibit good impedance matching to free space.

B9 Bulk and localized elastic sagittal waves in phononic crystals: k-dependent polarization B. Manzanares-Martínez, L. Castro-Arce and F. Ramos-Mendiet

Abstract: By using the supercell method and the criterion of energy balance we studied the polarization properties of the sagittal waves in 1D and 2D phononic crystals. We have found that the longitudinal/transverse component rate of these waves depends on the wave vector. The polarization map of bulk bands and defect modes indicates that the polarization of the transmission waves through finite phononic crystal samples is a function of the angle of incidence.

B10 Detection of ultra-short pulses with a nanoscale nanocavity D. Yu. Fedyanin, and A. V. Arsenin

Abstract: We consider a technique based on extremely slow modes of the insulator-insulator-metal (IIM) structure. A cavity, based on such modes, provides a high quality factor, and thus can store the energy. One of the layers of the IIM structure is a lossy dielectric film with a nonlinear dielectric function. This layer plays a role of a sensing element which is used in the detector. An analytical description and an accurate numerical study will be presented.

B11 Guided waves in integrated optics with the use of metamaterials L. Arnaud, S. Blaize, A. Bruyant, A. Vial, and G. Lerondel

Abstract: We theoretically study the properties of the guided wave in the case of structures constituted of a stack of dielectrics and metamaterial layers. Such configurations offer new possibilities for the control of light in integrated optics.

B12 Programmable density for arbitrary shaped one dimensional acoustic metamaterials W. Akl, A. Elsabbagh, A. Baz

Abstract: In this paper, arbitrary shaped acoustic metamaterials with effective densities that are programmed to vary according to any prescribed patterns along the volume of the metamaterial are proposed. The benefit of arbitrariness is for achieving the target metamaterial properties using less layers, and being able to realize properties that were still impossible using straight cavities. Numerical examples are presented to demonstrate the performance of the proposed arbitrary metamaterials.

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B13 Design and optimization of novel optical low pass filters of a 1D-photonic crystal using TiO2/ SiO2 thin films

E. Abdel-Rahman, K.Beshr, and R. Ghannam, and Amr Shaarawi

Abstract: Two novel optical low pass filters are designed, which act as an infrared shield film. The device blocks infrared light and passes only light composed of short wavelengths. The 1D photonic crystal is formed from alternate layers of optical thin films consisting of high (TiO2 material) and low (SiO2 material) refractive indices.

B14 Net-grid subwavelength gratings as reflectors for designing resonant cavity enhanced photodetectors

Yisu Yang, Yongqing Huang, Xiaomin Ren

Abstract: Subwavelength gratings (SWGs) give rise to propagation of only the zero-reflected and zero-transmitted diffraction orders as their periods are smaller than the incident wavelength. An attractive option that has been previously unexplored to our knowledge is applying SWGs as reflectors into resonant cavity photodetectors (RCE PDs). RCE PDs can realize the full absorption of multi-reflected lightwave in the resonance cavity with thin absorption layer which guarantees the ability of high speed signal processing.

B15 Electromagnetic waves refraction on the interface of transparent with absorptive right or left-handed media

N. L. Dmitruk, A. V. Korovin

Abstract: The expressions for the averaging over the high frequency time Pointing's vector in absorptive left-handed medium based on the classical vector Maxwell's equations for a continuum have been obtained. It was found that in the case of incline incidence with mixed polarization the additional perpendicular to incidence plane component of Poynting vector is appeared for negative e ective refraction. This addition in-plane component leads to noncoincidence of de ection and incidence plane.

B16 Computation of local surface plasmon resonance (LSPR) in coupled gold and silver nanoparticles with application in surface enhanced Raman scattering (SERS)

François K. Guedje, Monica Potara and Simion Astilean

Abstract: We use the Finite Difference Time Domain (FDTD) method to investigate the electromagnetic fields induced by optical excitation of LSPR on gold and silver nanoparticles in different configurations, including monomers and dimmers, and emphasize how the size, shape, and the particle arrangement leads to the optimal field enhancement near the particle surfaces.

B17 Linear and nonlinear pulse dynamics in scattering by nanowires C. G. Biris and N. C. Panoiu

Abstract: We present an analysis of the linear and nonlinear pulsed field dynamics in an array of metallic cylinders. The study employs a time domain numerical method based on the multiple scattering matrix formalism.

B18 Effect of symmetry on optimal photonic crystals design O. R. Bilal, M. A. El-Beltagy, and M. I. Hussein

Abstract: Through topology optimization, the configuration of a photonic crystal unit cell can be designed to specification. In many applications, it is desired to have photonic crystals with as large a band gap as possible. In this paper we utilize genetic algorithms towards the problem of unit cell optimization for maximum band gap; we consider the first, second and third band gaps in separate calculations. In particular we examine the effects of the degree of symmetry, imposed a priori on the unit cell configuration, on the band gap size and on the emerging optimal designs. We consider 2D models for both TE and TM polarizations. The results show that the type of symmetry constraint has a significant effect on the unit cell design and band gap size.

B19 Negative refractive index with superconducting photonic crystals C. H. Raymond Ooi and Kin Fei Ng

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Abstract: Photonic crystal with dispersive dielectric material and metallic split-ring resonator (SRR) structure is studied when the phonon-polariton frequency gap is close to the magnetic resonance frequency of the SRR. The combined effects of these two resonances show the existence of negative refractive index at terahertz frequency range. The negative refractive index effect persists even realistic lossy superconductors, a promising prospect for terahertz optoelectronics technology.

B20 Optical excitation of free electron Fermi gas and its enhancement using surface plasmon K. Miyaji, Y. Y. Ling, T. Aihara, K. Yamaguchi, and M. Fukuda

Abstract: Photo-excitation of electrons in metal was confirmed in the Au/Si Schottky barrier, and its excitation enhancement using surface plasmon was first observed in the wavelength range corresponding to less energy than the band-gap of silicon. The feasibility of new Schottky-type photodiodes, in which electrons are never generated by absorption in semiconductors but directly excited in metal, was experimentally demonstrated.

B21 Parametric study on the left handed metamaterial consist of modified split ring resonator and capacitance loaded

H. A. Majid, M. K. A. Rahim, T. Masri

Abstract: This paper describes the design, simulation of a left-handed metamaterial (LHM) structures. The combination of the modified square rectangular Split Ring Resonator (SRR) and the Capacitance Loaded Strip (CLS) are used to obtain the negative value of permeability, μ and the negative permittivity, ε. The modified Nicolson-Ross-Wier approach is used to identify the double negative region. A parametric study on the dimensions of the LHM structure has been done in order to analyze the effect to the S-parameter and the value of permittivity and permeability.

B22 Concepts for chipless metamaterial-based microwave RFID transponders C. Mandel, M. Puentes, M. Schüßler, and R. Jakoby

Abstract: Two concepts for chipless metamaterial-based RFID transponders are presented and compared in terms of their performance. One approach uses slow wave transmission line structures, the other one microresonator arrays to generate and reflect dedicated signatures in time and frequency domain. For the delay line system, a passive phase modulation scheme will be presented and the issue of adding a sensed quantity to the backscattered information will be addressed.

B23 Experimental investigation of magnetic circular dichroism spectrum and stress induced optical activity in a single-defect photonic crystal

M. Vasiliev, K. Alameh, V. I. Burkov, V. V. Koledov, V. A. Kotov, V. G. Shavrov, K.A. Zvezdin

Abstract: Experimental investigation results for the magnetic circular dichroism spectrum (MCD) of a photonic crystal (PC) are presented. We found that in the vicinity of the transmission peak within the photonic bandgap and also near the bandgap edges, the circular dichroism is measurable even in the absence of any applied magnetic field. The application of magnetic field leads to generating an additional MCD signal measurable at the wavelengths near the “defect mode” transmittance line.

B24 Recording and retriving of volume holograms in suppertered magnetic garnet films P. B. Lim, S. Sugiura, S. Mito, H. Horimai, K. Watanabe and M. Inoue

Abstract: In connection with the recent needs in developing high-density memories, holographic memories have received renewal interests because of their inherently high-density recording capabilities and high data transmission rate as well. In the holographic memories, the study in the write-once media is the frequently seen. However, rewritable holographic memories are also expected in the future. So, we study magnetic holographic recording with the magnetic material that is one of the candidates of rewritable holographic memories. In this paper, we describe the collinear magnetic hologram with magnetic garnet films.

B25 All-dielectric Metamaterials for Patch Antenna Gain Enhancement R. Alaee, and K. Moussakhani

Abstract: In this paper, all-dielectric sphere metamaterials as a flat lens in front of circular patch antenna have purposed. We have investigated one and two layers dielectric lenses that each layer consists of dielectric spheres with different dimension. The purposed lenses enhanced the gain of circular patch antenna around 7 and 11.4 dB for one-layer and two-layer lenses respectively.

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B26 New setup for microwave metamaterial measurements I. A. Karpov, M. R. Trunin

Abstract: We have developed original experimental equipment for measuring of metamaterials performance in the X-band. This equipment enables control behaviour of electromagnetic microwave stream in outskirts of metamaterial product with predetermine step into polar coordinates.

B27 The Motifs of Crystals and their Nano-aggregates X. M. Lu, X. D. Shi, Y. G. Bi, Z. X. Chi, T. Min, L. L. Zhu, S. F. Xiao, and L. J. Zhong

Abstract: Metal-organic-hybrid bulk chain-like, block, tubular, and plate crystals have been synthesized by wet chemical method. Single crystal X-ray diffraction and TEM reveal that all the nano-structures are associated with their crystal motifs, which provide a successful and effective access to assemble controlled specific nano-structures from bulk crystal of which their motifs are fine-desired.

16:45 – 18:35 Amneris

Session 2A

Fundamental properties and modeling

Chaired by: Mario Sorolla and Mikhael Lapine

16:45 Invited Getting even with reciprocity A. Bossavit

Abstract: We propose working definitions of concepts such as impedance and reciprocity, in order to investigate a few controversial issues about non-reciprocal media, the Post condition, and homogenization.

17:05 Application of the McCutchen theorem to image-forming metamaterial slabs Carlos J. Zapata-Rodrıguez and Juan J. Miret

Abstract: The possibility of recovering sub-wavelength details of an object is a subject of growing interest leading to a profusion of superresolving image-forming techniques. In 2000 Pendry showed that a thin slab of a medium with negative refractive index (NRI) is capable of generating an exact replica of a plane object, thus being coined as a perfect lens. For the homogeneous part of the field, a phase reversal is accomplished within the NRI medium that compensates the phase gathered by the wave when travelling away from the source. On the other hand, the evanescent components of the wavefield carrying those sub-wavelength features are amplified in the metamaterial layer in order to regain their amplitudes at the image plane. To do it, coupled surface plasmons are excited at the input and output interfaces of the NRI-material slab.

17:20 A geometric perspective on omega-like media S. A. Matos, C. R. Paiva, and A. M. Barbosa

Abstract: In the work herein presented these media are analyzed using the mathematical framework of Clifford (geometric) algebra that was introduced in for the specific case of simple (electric) anisotropy. The authors have also developed a new classification scheme for media with both electric and magnetic anisotropies. This communication represents then a first generalization of that research into the realm of bianisotropic media. We show how that new mathematical framework leads to a new perspective on the interplay between electric and magnetic anisotropies, on the one hand, and the magnetoelectric coupling that characterizes (reciprocal) bianisotropic materials (such as omega-like media) on the other hand.

17:35 Keynote talk Theory and simulations of metamaterials Shanhui Fan

Abstract: We present some of our recent works in the study of meta-materials, including the development of high-index meta-materials. We also introduce a theoretical formalism of the photonic band structure of optical meta-materials in terms of a Hermitian eigenvalue problem, and show that

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the eigenmodes of such lossless systems provide an orthonormal basis, which can be used to rigorously describe the behavior of lossy dispersive systems in general.

18:05 Anisotropy of hybrid mode admittance A.M. Merzlikin, A.P. Vinogradov, A.N. Lagarkov, M. Levy, D.J. Bergman, Y.M. Strelniker

Abstract: This communication devoted to investigation of electromagnetic wave propagation and localization into periodic structure made of anisotropic and gyrotropic layers. It is shown that hybrid wave, which is an eigensolution in anisotropic/gyrotropic periodical system, may be described in term of admittance, but contrary to the isotropic case it is tenser quantity. It is shown that gyrotropy, anisotropy and periodicity results in formation of a band gap of new type, so-called degenerate band gap.

18:20 Dyadic green's function of a PEMC cylinder M. Rasouli. Disfani, K. Vafi, and M. S. Abrishamian

Abstract: The dyadic Green's function of a PEMC cylinder is derived with the aid of the principle of scattering superposition and Ohm-Rayleigh method. The PEMC boundary conditions are presented in dyadic form and it shows that how the impedance parameter of PEMC and cross-polarized fields appear in the Greens function. An arbitrary point source along the z-direction is assumed and the asymptotic expansion is applied in order to attain a closed form for the electrical field.

16:45 – 18:40 Radames

Session 2B

Metamaterials

Chaired by: Omar Ramahi and Kamal Awadalah

16:45 Invited Microwave metamaterials with ferromagnetic microwires L. V. Panina, Zhukov, M. Ipatov, V. Zhukova, and J. Gonzalez

Abstract: This paper reviews recent results on a new type of wire media based on amorphous ferromagnetic microwires. The combination of two effects, namely, a strong dispersion of the effective permittivity in metallic wire composites (resonance or plasmonic type) and giant magnetoimpedance effect in wires will result in unusual property that an effective dielectric response may strongly depend on the wire magnetization which can be changed with external stimuli: magnetic field, mechanical stress and temperature. Another benefit of using magnetic microwires is that it will be possible to engineer low density materials with a relatively high magnetic activity in a broad range of microwave frequencies.

17:05 Invited Tunable metamaterials: structural approach M. Lapine, D. Powell, I. Shadrivov, M. Gorkunov, R. Marqués, and Yu. Kivshar

Abstract: We propose a novel approach for direct tunability in metamaterials, base on the controllable lattice adjustment. We present the general theory for the proposed tuning method, numerical simulations which reveal further peculiarities of lattice effects, as well as experimental demonstration of the efficient transmission tunability in different regimes.

17:25 From surface resonant states to coherent metamaterials Hongqiang Li

Abstract: We investigate the formation of the surface resonant states on a planar meta-material slab with a one-dimensional model. The surface resonant states on the slab are governed by the interplay between the cavity resonances and the Bloch wave channels. With the presence of delocalized surface resonant states, the metamaterial slab radiates coherent thermal emission radiations efficiently in a wide frequency range even with a remarkable degree of structure disorder. The local field in the slab, enhanced to 2~3 orders with respect to the incidence, is very sensitive to the incident angle.

17:40 Tuned trapped mode on an asymmetric planar metamaterial Abdelwaheb Ourir, Redha Abdeddaim, and Julien de Rosny

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Abstract: A trapped mode is achieved with a metamaterial based microstrip circuit. This high Q resonant mode is obtained in a metamaterial made of an asymmetric square shaped split ring resonator. Varactor diodes lead to an electronic mode switching and a wide bandwidth tuning.

17:55 Composite right/left-handed circular meta-waveguide T. M. Abuelfadl

Abstract: Different realizations of cylindrical meta-waveguide are proposed. One of the pro-posed realizations is all metallic, which make it favorable in applications involving electron beams such as Backward Wave Oscillator BWO.

18:10 Investigation of magneto-dielectric thin films as substrate for high impedance surface F. Grange, C. Delaveaud, and K. Mahdjoubi

Abstract: In the present paper we study the effect of magneto-dielectric laminated thin films on the characteristics of high impedance surface. Analytical and numerical modeling are compared by respectively using the AEMT method and a full-wave simulation tool.

18:25 Omega-shaped stereometamaterials R. Alaee and K. Moussakhani

Abstract: In this paper, omega-shaped stereometamaterial has been investigated. The transmittances of different twisted angles have been obtained. In order to understanding the polarization control of stereometamaterials, the phase difference of the one and two layers stereo-omega dimmer metamaterials has been analyzed.

16:45 – 18:00 Ramfis

Session 2C


Chaired by: Thomas Krauss and Said Elkhamy

16:45 Keynote talk Enhanced light-matter interaction in slow light photonic crystals Thomas F. Krauss

Abstract: Photonic crystals allow the manipulation of light to a very high level, and without intrinsic losses. As such, they are very versatile tools for enhancing light-matter interactions. I will discuss three different examples for these enhanced interactions; a) Enhanced nonlinear effects such as self-phase modulation and third harmonic generation; b) Sensitive detection of bioparticles in slotted photonic crystal waveguides and cavities; c) Highly efficient adiabatic frequency changes and their application for tunable delay.

17:15 Microwave signal storage in active macrospin magnonic crystals G. A. Melkov, Yu.V. Koblyanskiy, V. Novosad, V. S. Tiberkevich, and A. N. Slavin

Abstract: It is demonstrated that parametrically pumped macrospin magnonic crystals based on wo-dimensional arrays of nano-sized cylindrical magnetic dots can be used for storage of microwave ulsed signals. The microwave pulses can be stored for the time interval which is substantially (four oders of magnitude) larger than the spin wave lifetime in a passive magnetic dot, and all the phase and frequency characteristics of the stored microwave signal are preserved.

17:30 Strongly dispersive Anderson localization in disordered photonic crystal P. D. Garcia, S. Smolka, and P. Lodahl

Abstract: In most experiments on Anderson localization so far, only completely random systems without any long-range correlation between the scattering sites have been used, meaning that the Anderson localized modes cannot be controlled. Strongly confined modes were recently observed in the slow-light regime of a disordered photonic crystal waveguide and attributed to Anderson localization. We have tested this hypothesis by measuring the light localization length, ξloc, in a disordered photonic crystal waveguide and checked explicitly the criterion of one dimensional Anderson localization that ξloc is shorter than the waveguide length LS. Our measurements

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demonstrate for the first time the close relation between light localization and density of states, which can be used ultimately for controlling Anderson localized modes.

17:45 Optical multistability in 1D nonlinear photonic crystal structure E. Lotfi, K. Jamshidi-Ghaleh, F. Moslemi and H. Masalehdan

Abstract: A 1D photonic crystal structure contains 16 layers, 8 common dielectrics and another 8 one nonlinear media, with an arrangement similar to 5-seriy of Thue-Morse is presented. In this structure, the properties of band-gape, optical multistability are investigated. On the band gap, 5 resonant modes are observed. On the behavior of output intensity versus input intensity around resonant frequencies, the multistability response observed. When the frequency of incident filed is close to resonant frequency, the threshold of multistability is decreased.

16:45 – 18:30 Amonasro

Special session 2A

Metamaterial applications: devices for the real world

Organized by: Ihab El-Kady Chaired by: Ihab El-Kady

16:45 Invited Challenges and applications for 2D and 3D IR metamaterials F. B. (Rick) McCormick

Abstract: Sandia National Laboratories initiated a comprehensive program in late 2008 directed toward the development of practical 3D metamaterials operating in the thermal infrared. A prime objective of this program is to understand and engineer absorption losses so that a wide variety of infrared optical devices ranging from lenses to selective absorbers may be produced. In addition to our interdisciplinary team’s efforts in theory and modeling, material science, micro/nano fabrication, and infrared characterization, we are analyzing several “proxy applications” to establish clear metamaterial performance requirements as targets for our research. This analysis is beginning to quantify a number of interesting challenges for future applications of metamaterials in this spectral band. This talk will describe our program, discuss these technical challenges, and review the new capabilities we are deploying to address them.

17:05 Invited Manipulation of near field by means of arrays of wires P.A Belov, G. Palikaras, Y. Zhao and C. Simovski

Abstract: Tapered arrays of metallic wires enable magnification, demagnification and transmission to distances of several wavelengths of near-field distributions with subwavelength resolution. Our experiments demonstrate these capabilities to manipulate the electromagnetic waves at the subwavelength scale in the microwave frequency range.

17:25 Invited All-angle polarization-insensitive infrared absorbers for detectors and energy harvesting D. W. Peters, P. Davids, J. R. Wendt, A. A. Cruz-Cabrera, S. Samora

Abstract: We demonstrate an angular and polarization insensitive device for the absorption of infrared radiation. These nano-antenna designs can be used in efficient detector and energy harvesting applications. The metal-absorbing dielectric-metal architecture lends itself to simple fabrication and integration with other device processes. We will show our design methodology and numerical and experimental results of fabricated structures. Rigorous coupled wave analysis simulations performed over a broad angular and specular range show the angular insensitivity of this design. The lossy dielectric layer may be a material such as mercury cadmium telluride, a common infrared detector material. We have modeled and fabricated test structures using silicon dioxide and silicon nitride as the absorbing dielectric. These results will be presented.

17:45 Analytical theory of effective global cloaking processes: designing the spherical EM cloaking nano-element T. Sengor

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Abstract: Properties of non-planar ring sources are studied and possibilities creating structures providing almost global cloaking are given. Co-rings in nanometric dimensions lying on different azimuth and/or equatorial planes are defined as a cloaking nano-element. Several compositions of nano rings on spherical substrates are studied. The necessary conditions for the electromagnetically effective cloaking are generated.

18:00 Omega media in the design of NRD directional couplers A. L. Topa, C. R. Paiva, and A. M. Barbosa

Abstract: Omega media can be built by embedding small metallic omega-shaped inclusions in a host medium. This paper addresses the influence of losses and dispersion of omega media in the design of variable NRD directional couplers. A single-resonance model is used for the constitutive parameters, describing the resonant behavior and finite conductivity of the omega inclusions. Moreover, like the case of double negative (DNG) media, the omega medium may also exhibit both negative permittivity and permeability. Taking all these effects into consideration, we present a complete comprehensive modal analysis for both even and odd LSM modes propagating in this structure.

18:15 Design of an infrared shield device based on 1D photonic crystal E. Abdel-Rahman, K. Beshr, and R. Ghannam, and Amr Shaarawi

Abstract: A novel optical low pass filter acting as an infrared shield film is designed. The filter is composed of a 1D photonic crystal structure that blocks infrared light and passes only light of short wavelengths. Transmission greater than 90% in the visible region and reflection greater than 99% in the infrared region has been observed. The properties of the filter by varying the angle of incidence of light at both TE (p-polarization) and TM (s-polarization) modes have been investigated.


Special session 2B

Characterization of electromagnetic properties of metamaterials; ECONAM project activity review

Organized by: Alexey Vinogradov Chaired by: Alexey Vinogradov

16:45 Invited Electromagnetic characterization of graphene and graphene based nano structures Yu. E. Lozovik

Abstract: Electromagnetic characterization of new nanomaterials, graphene and graphene based structures is discussed. Plasmonics and polaritonics based on graphene and graphene based structures is considered. The spectrum of cavity plasmon polaritons, superposition of optical microcavity photons and plasmons in monolayer graphene (embedded in the cavity, particularly in strong magnetic field) is analyzed. The controlling and drag effect for cavity polaritons (in optical microcavity with embedded graphene or semiconductor quantum well) by neighbouring 2D electron layer is analyzed.

17:05 Invited Resonance transmittance in metamaterials made of stacked arrays of dogbone shaped conductor pairs A.G. Schuchinsky, A. Vallecchi, A.P. Shitvov and F. Capolino

Abstract: Metamaterials composed of arrays of dogbone shaped conductor pairs can mimic the response of the structures with electromagnetically induced transparency (EIT). The distinctive properties of such single layer and stacked layered arrays will be discussed in detail.

17:25 Quantifying the nonlinear susceptibility of metamaterials S. Larouche and D. R. Smith

Abstract: We present a transfer matrix approach to determine the effective nonlinear susceptibility of metamaterials (MMs) from the amplitude of the harmonics they generate. We show its effectiveness by determining the effective nonlinear susceptibility of a simple MM.

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17:40 Anderson localization in disordered dispersive metamaterials D. Mogilevtsev, F. A. Pinheiro, R. R. dos Santos, S. B. Cavalcanti and L. E. Oliveira

Abstract: We study wave propagation in a one-dimensional stack made up of alternating slabs of right-hand and left-hand materials with the metamaterial component possessing Drude-type dispersive responses for the dielectric permittivity and magnetic susceptibility; we also take the layer widths to be randomly distributed. We study some effects on Anderson localization produced by such a static disorder, and show that taking into account explicit dispersive properties of meta-materials is crucially important for localization studies. We have found that localization lengths behave quite distinctly, depending on whether or not dispersion is taken into account.

17:55 Frequency-dependent homogenization of split-ring arrays M. H. Belyamoun, A. Bossavit and S. Zouhdi

Abstract: We use a novel homogenization method to compute the frequency dependent permeability of a split-ring periodic structure. Instead of meshing the small split of the metallic ring, we introduce a cutting surface through which the magnetic potential has a jump. Thus, we obtain the expected negative permeability of this metamaterials with a minimal cost.

18:10 Sub-wavelength diffraction-free imaging in low-loss metal-dielectric multilayers R. Kotynski, T. Stefaniuk, A. Pastuszczak

Abstract: We analyse several designs of metal-dielectric multilayers for subwavelength imaging in the visible wavelength range. The structures combine a large effective skin depth of the order of the wavelength in the dielectric medium, with approximately diffraction-free propagation. We use the effective medium analysis and further refine it with the transfer matrix method and FDTD modeling, followed by the sub-wavelength point spread function engineering. We also present the results of a tolerance analysis, where we account for the experimentally achievable accuracies of the layer thicknesses and material permittivities.

16:45 – 18:35 The View

Special session 2C

Applications of metamaterial concepts to microwave engineering

Organized by: Ferran Martin Chaired by: Ferran Martin

16:45 Invited Metamaterial-inspired engineering of antenna systems Richard W. Ziolkowski, Peng Jin, and Chia-Ching Lin

Abstract: A number of advances in the use of metamaterials and metamaterial-inspired structures to improve the overall efficiency, bandwidth, and multi-functional performance of electrically small antennas (ESAs) in the HF, VHF, UHF and microwave regimes will be reviewed.

17:05 Invited Non-foster active transmission line with nearly dispersionless ENZ behavior S. Hrabar, I. Krois, A. Kiricenko, I. Bonic

Abstract: An RF transmission line with nearly dispersionless superluminal phase velocity (an ENZ behavior) is investigated numerically and experimentally. The structure employs periodic loading of a standard transmission line with active NIC-based negative capacitors or negative inductors. It is shown possible to achieve a stable operation within a band wider than one octave. Such a line might find applications in broadband negative delay circuits and in wideband electromagnetic cloaks.

17:25 Invited Artificial transmission lines for metamaterial applications C. Camacho-Peñalosa, J. Esteban, T.M. Martín-Guerrero, and J.E. Page

Abstract: Metamaterial transmission lines can be defined as artificial transmission lines that emulate the propagation characteristics in negative-refraction-index bulk media. The performance of such

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artificial transmission lines is determined by their unit cells. The characteristics and fundamental properties of different families of unit cells are reviewed and compared.

17:45 Invited Advanced concepts for negative-index metamaterials and nano-antennas A. I. Zaghloul, S. J. Weiss, W. Keefe Coburn, Y. Lee and S. Keller

Abstract: This paper presents concepts under development at the US Army Research Laboratory in the areas of metamaterials and nano-antennas. Of special interest are the simulation and experimental demonstration of the negative refractive index in metamaterial slabs, the broadening of the metamaterial bandwidth using non-periodic and random structures, the use of nano components in bulk metamaterial structures, and the use of carbon nano-tubes in building “nano fabric” antennas that can have practical use in army outfits.

18:05 Sensitivity study of the CRLH balanced structures R. Siragusa, V. H. Nguyen, E. Perret, P. Lemaître-Auger, S. Tedjini and C. Caloz

Abstract: An automated tool for designing CRLH structures based on a co-design approach is used in order to highlight and study the effect of the over-etching on the balanced characteristic.

18:20 Compact cavity resonators using high impedance surfaces D. Dancila, X. Rottenberg, H.A.C. Tilmans, W. De Raedt and I. Huynen

Abstract: This paper presents a miniaturization concept for metallic cavity resonators. Placing adequate boundary conditions e.g. High Impedance Surfaces approximating Perfect Magnetic Conductors, enables a reduction of the volume of the cavity by a factor four, at a fixed frequency. A first design combining standard PCB technology with a metallic rectangular cavity is proposed at 4GHz.

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Tuesday February 23, 2010 08:00 – 08:30 Registration


Plenary session III

Chaired by: Sergei Tretyakov and Costas Soukoulis

08:30 Keynote talk Metamaterial-inspired engineering of radiating and scattering systems R. W. Ziolkowski

Abstract: Electrically small radiating and scattering systems have been designed based on metamaterial-inspired engineering concepts. Electrically small antennas have been tested successfully in the HF, VHF and UHF frequency bands. Electrically small lasing systems have been designed in the optical regime. These systems and the physics and engineering underlying their interesting performance characteristics will be reviewed.

09:00 Keynote talk The medium is not always the message A. Sihvola

Abstract: This presentation discusses metamaterials as media. The term “medium” will be discussed critically.

09:30 Keynote talk Transforming light with metamaterials Vladimir M. Shalaev

Abstract: One of the most unique properties of light is that it can package information into a signal of zero mass and propagate it at the ultimate speed. It is, however, a daunting challenge to bring photonic devices to the nanometer scale because of the fundamental diffraction limit. Metamaterials can focus light down to the nanoscale and thus enable a family of new nanophotonic devices. Metamaterials, i.e. artificial materials with rationally designed geometry, composition, and arrangement of nanostructured building blocks are opening a gateway to unprecedented electromagnetic properties and functionalities that are unattainable with naturally occurring materials. We review this exciting field and discuss the recent, significant progress in developing metamaterials for the optical part of the electromagnetic spectrum. Specifically, we report on our recent world’s smallest nanolaser (collaborative work with Norfolk State University and Cornell), describe the phenomena of artificial magnetism across the whole visible and negative refractive indices in the optical range, and demonstrate a broadband cloaking in the visible based on tapered waveguides (collaboration with BAE and Towson University). A new, powerful paradigm of engineering space for light with transformation optics, which can enable a family of new applications including a planar magnifying hyperlens and optical black hole, will be also discussed.

10:00 Keynote talk 3D Chiral photonic crystals and metamaterials Martin Wegener

Abstract: We review our recent experiments on three-dimensional chiral photonic metamaterials and photonic crystals operating at optical frequencies.


Coffee break & Poster session III

Chaired by: Olivier Dubrunfaut

C1 Multilayer Antenna with Metamaterial Using a Full Wave Analysis H. C. C. Fernandes and R. R. C. França

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Abstract : This paper presents a study and development of analytical equations based in the concise full wave Transverse Transmission Line (TTL) method, applied to microstrip antennas, with new metamaterial. In order to analyze this structure the complex resonant frequency was determined. The numerical computational results were obtained for these antenna applications are presented for different parameters.

C2 Minimization of fluctuation of the signal beam in the nonlinear optical M. K. Maurya, T. K. Yadav and R. A. Yadav

Abstract: In the photorefractive optical wave-mixing system, fluctuation in the signal beam intensity of the nonlinear optical media with a reflection grating has been analyzed by an employing positive feedback method. Using such a positive feedback method of a pump beams, the relative fluctuation in the photorefractive output signal beam intensity with respect to its mean intensity can be minimized significantly without reducing its mean intensity.

C3 Object-dependent cloaking in the first-order Born approximation T. Setälä, T. Hakkarainen, A. T. Friberg and B. J. Hoenders

Abstract: We consider cloaking of a slab object in scalar wave theory within the first-order Born approximation. We show that such cloaking is not possible for arbitrary fields but it is for self-imaging fields. Furthermore, the scattering potential of the cloak slab depends on that of the object slab as well as on the structure of the incident field. The method of object-dependent cloaking in weak scattering could have a number of practical applications.

C4 Effect of curvature of metamaterial Inclusions on their magnetic properties A. Kabiri and O. M. Ramahi

Abstract: Artificial magnetic materials are geometry dependent with different geometrical structures yielding different magnetic properties. Geometrical properties can be identified by the area, circumference and the curvature of the shape of the inclusion. In this study, we investigate the effect of curvature on the magnetic properties of artificial structures while the area and the perimeter of the inclusions are kept constant. The magnetic property of the medium is characterized based on the integral of the curvature of the inclusion. By using variational calculus, a differential equation for the geometry of inclusions is derived to provide the topology of a contour with minimum curvature while having constant area and perimeter.

C5 A novel dual-frequency triangular microstrip patch antenna with EBG structures S. E. Hosseini, M. Arghiani, and A. R. Attari

Abstract: This paper presents a novel design of dual-frequency triangular microstrip patch antenna over electromagnetic bandgap (EBG) structures. The proposed antenna is designed using one slot in triangular patch. In addition, radiation characteristics of this microstrip patch over EBG substrate are investigated. To obtain better performance of the antenna characteristics, parametric studies are carried out. Details of the proposed novel microstrip antenna design is presented and discussed.

C6 The analysis of electromagnetic properties of metamaterials On the basis of a method of the minimal autonomous blocks

S. V. Maly

Abstract: On the basis of a method of the minimal autonomous blocks the complex approach to analysis of electromagnetic properties of composites, metamaterials and systems on their basis is offered. Results of application of the developed techniques, algorithms and programs for the electrodynamic analysis of various types of structurally non-uniform materials, including materials with multiscale internal structures are presented.

C7 Perfect Optical metamaterial absorber Jiaming Hao, Jing Wang, and Min Qiu

Abstract: The design and the experimental demonstration of a kind of ultra-thin, wide-angle perfect metamaterial absorber for optical frequencies are presented, where the absorber is composed of gold subwavelength nano-structures.

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C8 Effects of acoustic band gap on stimulated brillouin scattering in microstructured optical fiber

Xinzhi Sheng, Di Wu, Jian Wang, Yin Wang and Chenying Bao

Abstract: We study numerically effects of acoustic band gap on SBS in MOFs by using plane wave expansion method. For the typical kind of MOFs with hexagonally arrayed circular air holes, the band gap of acoustic wave of XY mode appears only when the air holes’filling rate is greater than a threshold value, and the upper and lower boundary values of the band gap decrease with the increasing of the air holes’filling rate. Numerical results show that the Stokes pulse advancement can be achieved in the gain saturation regime.

C9 Design of controllable metamaterial using triangular split-ring Meenakshi S. S. Pattnaik, J.G.Joshhi, Swapna Devi

Abstract: Metamaterials are artificial periodic structures, which provide the possibility of changing the overall properties of a material by simply adjusting the metallization geometry or properties of the substrate. In this paper, we propose and introduce a new geometry consisting of triangular split ring structure, which exhibits metamaterial characteristics (TSR). The structure exhibits good phase reversal characteristics in the desired band. The aim of this paper is to investigate the effect of TSRs’geometrical parameters on the magnetic resonance frequency, more precisely the variation of the split in the geometry. The proposed model is simple and flexible and thus should help a designer for practical applications.

C10 Investigation on novel embedded shapes of electromagnetic bandgap structures and via effect

D. N. Elsheakh, H. A. Elsadek, E. A. Abdallah, M. F. Iskander and H. Elhenawy

Abstract: In recent years, unique properties of electromagnetic band-gap (EBG) structures have made them applicable in many antenna and microwave applications. Consequently, there has been a growing interest on investigating electromagnetic band-gap structures, and various kinds of EBG structures have been suggested at microwave frequencies for applications in the electromagnetic and antenna community. In this paper, three novel shapes of EBG structures are investigated and by using two cascaded columns of these shapes a novel dual-band structure is obtained. The effects of the via position and height are discussed with the method of suspended microstrip line.

C11 Influence of medium nonlinearity on surface plasmon resonance in copper-silica nanocomposite I. M. Dmitruk, I. V. Blonskyy, I. A. Pavlov, O. A. Yeshchenko, A. A. Alexeenko, A. M. Dmytruk, P. I. Korenyuk, and V. M. Kadan

Abstract: Alternating-sign shift of surface plasmon resonance in copper nanoparticles incorporated in silica matrix has been observed under irradiation by intense femtosecond laser pulse. The red shift of plasmon observed during the action of pump pulse is interpreted as a result of change of dielectric constant of silica matrix due to optical Kerr effect in electric field of pump pulse enhanced in a vicinity of metal nanoparticles. The field enhancement factor is estimated from the value of the observed red shift of plasmon resonance.

C12 Technological challenges of 1-Dimensional magnetic photonic crystals Vasiliev M., Alameh K., Balabanov D. E. , Burkov V. I., Koledov V. V., Kotov V. A., Shavrov V. G., Zvezdin A. K.

Abstract: Visible-region magnetic photonic crystals (MPC) designed for higher-order bandgap operation have been proposed to overcome the technological restrictions originating from the strong thickness dependency of the individual magnetic layer properties observed in MPC structures.

C13 Theoretical and experimental investigations of easy made fishnet metamaterials at microwave frequencies

R. Yahiaoui, V. Vigneras and P. Mounaix

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Abstract: We theoretically and experimentally demonstrate the negative refractive index of structures based on an array of holes which has been mechanically designed to get a metamaterial from 40GHz up to 94GHz.

C14 Wide-angle, broadband and polarization-insensitive thin absorber Y. Jin, Y. Q. Ye and S. L. He

Abstract: A nearly omni-directional polarization-insensitive absorber is proposed. Through the excitation of magnetic resonance in a metal-dielectric layer, the incident light is perfectly absorbed in a thin thickness which is about 25 times smaller than the resonance wavelength. By simply stacking several such structural layers with different geometrical dimensions, the bandwidth of this strong absorption can be effectively enhanced due to the hybridization of magnetic resonances of different layers.

C15 Design and fabrication of modulable metamaterial stacks D. Garoli, G. Pasisi, M. Natali and F. Romanato

Abstract: Metamaterials are artificial materials engineered to provide properties which “may not be readily available in nature”. Here we report our preliminary results on the design, fabrication and characterization of new metamaterial optical devices whose main characteristic is the possibility to tune the refractive index by an external stimulus (applied voltage). The device concept is based on the integration of an electro-optic element into the structure of the metamaterial membrane.

C16 Analysis of dispersion properties of waveguide based on metamaterials S. Bouali and T. Aguili

Abstract: This paper presents an analysis of dispersion properties of rectangular waveguide using the transmission line theory of metamaterials. The rectangular waveguide discussed in this paper is made of an infinite repetition of unit cell in one dimension. By defining the matrix chain of the unit cell and using Floquet’s theorem we obtain the equation of dispersion of the structure. This structure produce a set of allowed and forbidden frequency bands which is plotted and discussed, the results of this analysis are presented.

C17 Towards experimental realization of DB metamaterial layer S. Hrabar, D. Zaluski, D. Muha, and B. Okorn

Abstract: Realization of recently theoretically introduced DB material layer, based on the arrangement of SRRs and CSRRs located in the same plane, is proposed in this paper. Theresults of full-wave numerical simulation revealed vanishing of the normal components of homogenized D and B vectors, which is a unique property of a DB medium.

C18 Optical absorption and SHG in PMMA and SiO2-matrices doped with DO3 as function of poling time

Jorge García-Macedo, Alfredo Franco, Guadalupe Valverde-Aguilar, Laura Romero

Abstract: The orientation of non-linear dyes embedded in different matrices plays an important role on the physical properties of the film, as the optical absorption and second harmonic generation (SHG). The order parameter is related with the efficiency of the polarization treatment through the optical absorption. The answer of the dye to the polarization treatment depends of the matrix, molecule-molecule interactions and molecule-matrix interactions. For these reasons, amorphous and nanostructured of PMMA and SiO2 doped with the organic dye Disperse Orange 3 (DO3) films were prepared by sol-gel method. Sodium Dodecyl Sulfate (SDS) was used as template to perfomed a long-order lamellar nanostructure, which was detected using X-ray diffraction. The films were characterized by optical absorption (AO) and scanning electronic microscopy (SEM). The AO measurements and the second harmonic generation (SHG) intensity were carried out at different orientation steps of the chromophores embedded in the films.

C19 Angle dependent transmission of ceramic based inverse opal Hooi Sing Lee, Alexander Petrov, Roman Kubrin, Rolf Janssen, Gerold Schneider and Manfred Eich

Abstract: We present a study of the influence of the light incidence angle on transmission characteristics in a ceramic based (YSZ, n= 2.12) inverse opal, which may play an important role in heat

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radiation management. The numerical simulation of transmission is performed on the 10 layers structure that is made of close-packed air spheres arranged in a face-centred cubic lattice, embedded in YSZ and excited along [111] direction. The calculation based on frequency domain finite integration technique of CST Microwave Studio was performed with periodic boundaries on four sides of the structure along x and y-axis, which allowed us to manipulate the phase of the wave and control the angle of incidence light.

C20 Design of waveguides with left-handed materials Mondher Labidi, Jamel Belhad Tahar, Fethi Choubani

Abstract: In this paper, a new design of waveguides with left-handed materials is presented.

C21 Plasmonic add/drop filter based on asymmetrical ring resonators I. Zand, M. Bahrami Panah, M. Rasooli Disfani, and M. S. Abrishamian

Abstract: In this paper, we have investigated a plasmonic filter with half circular geometry as ring structure. One of the interesting characteristics of this geometry is its nonreciprocal behaviour due to its asymmetrical structure. Moreover, having two corners in comparison with circular ring creates different resonance frequency characteristics. The Finite Difference Time Domain (FDTD) is used as a numerical method to calculate the spectrum of the power transmission in the presented structure.

C22 Photoconductivity studies on amorphous and crystalline TiO2 films doped with gold nanoparticles G. Valverde-Aguilar, J. A. García-Macedo, P. A. Galván-Ramírez

Abstract: In this work, amorphous and nanocrystalline TiO2 films doped with and without gold nanoparticles were synthesized by the sol–gel process at room temperature. The TiO2 films were synthesized by using tetrabutyl orthotitanate as the inorganic precursor. The films were spin-coated on glass wafers. The samples were annealed at at 100°C for 30 minutes and sintered at 520°C for 2 hour. After the heat treatment, a colour change from wine to light blue colour is detected in the TiO2/Au film. All films were characterized using X-ray diffraction, infrared spectroscopy, scanning electron microscopy and transmission electronic microscopy and UV-Vis absorption spectroscopy.

C23 Locally increased inverse Faraday effect in plasmonic structures V.I. Belotelov, E.A. Bezus, L.L. Doskolovich, A.N. Kalish, A.K. Zvezdin

Abstract: Electromagnetic field concentration in plasmonic nanostructured materials of not vanishing Verdet constant is investigated. An enhanced local stationary magnetic field appearing due to the inverse Faraday effect while the heterostructure is illuminated by circularly polarized light is demonstrated. It implies a possibility for local control of the magnetization.

C24 Gain-assisted plasmonic particles for metamaterial applications A. Veltri and A. Aradian

Abstract: In this work, we study how the plasmonic resonance in metallic nanoparticles can be enhanced through the coupling, at the nanoscale, to gain elements like dyes or quantum dots. Various chemically-realisable geometries are considered, including core-shell nanoparticles where the core is metallic and lossy, and the shell is e.g. made of silica doped with a fluorophore. The efficiency of the coupling in terms of plasmon amplitude and sharpness is studied as a function of the distance between the fluorophore molecules and the metal parts.

C25 Reducing backscattering cross section of an electrically large sphere with metamaterial coating

Maysam Haghparast and Mohammad Sadegh Abrishamian

Abstract: In this paper, we showed that homogeneous metamaterial coatings with relative permeability and permittivity less than one can reduce backscattering cross section of an electrically large sphere. As monostatic radar works based on backscatter wave, it can not detect such a coated sphere. We analyzed the effect of adding loss to coating and proved that even with a lossy coating, transparency in front of monostatic radar is achievable.

C26 Confined modes of self-standing and supported particle arrays X. M. Bendana, F. J. Garcia de Abajo

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Abstract: We calculate the conditions for the existence of trapped modes in planar particle arrays and its properties. We also study the behavior of these array modes when placing a surface or a supporting structure in its proximity.

C27 Steerable Vivaldi antenna using tunable metamaterial Redha Abdeddaim, Abdelwaheb Ourir, and Julien de Rosny

Abstract: We propose an original steerable antenna using tunable metamaterial. Our structure consists of a Vivaldi antenna coupled with an active metamaterial made of 5 independent and tunable lines. Thanks to these lines, the phase and therefore emission angle of the wave is controlled. A deflection up to ±28°has been achieved.

11:15 – 13:00 Amneris

Session 3A

Metamaterials

Chaired by: Tatsuo Itoh and Mohamed Abuelzahab

11:15 Invited Self-organized eutectic structures - metamaterials interface D. A. Pawlak, K. Bienkowski, M. Gajc, A. Kłos, K. Kolodziejak, K. Orlinski, K. Sadecka, A. Stefanski, S. Turczynski

Abstract: In this paper the summary of the new achievements in the self-organization route to metamaterials based on directional solidification of eutectics (DSE) will be discussed. The new obtained materials and new geometries will be presented. A short introduction to a novel method of creating the metallo-dielectric structures based on nanoparticles doping (NPD) will be presented.

11:35 Invited A single-layer broad-angle negative-index metamaterial for the visible R. de Waele, S. P. Burgos, H. A. Atwater, and A. Polman

Abstract: We propose a new design of metamaterials with negative index of refraction and high gure-of-merit in the visible spectral region. The material is composed of a single layer of coupled coaxial waveguides that consist of a thin dielectric ring surrounded by Ag. By studying both the individual and collective properties of the waveguides we find that the metamaterial response is highly tunable and only weakly dependent on the angle and polarization of incident light.

11:55 Invited The effect of titanium adhesion layers on the optical response of split ring resonators B. Lahiri, R. Dylewicz, S. G. McMeekin, R. M. De La Rue and N. P. Johnson

Abstract: The optical response of Split Ring Resonators (SRRs) scales linearly with its dimensions down to micron dimensions. At smaller dimensions and higher frequencies, metals stop behaving like perfect conductors and start displaying their individual properties according to the Drude model. In this presentation we compare responses of similar sized gold and aluminium based SRRs at telecom wavelengths. To attach gold to a substrate (silicon in our case), an adhesive layer is required. We have employed titanium, a commonly used adhesive layer, for sticking gold to the silicon substrate. By varying the fraction of titanium to gold we are able to attribute a red shift in the optical response of gold based SRRs of around 20 nm for at little as 2 nm thickness of this adhesive layer. We similarly compare a blue shift in response obtained from similar sized SRRs made from aluminium.

12:15 Keynote talk Gyroelectric nonlinear control in complex metamaterial structures A. D. Boardman, P. Egan, R. C. Mitchell-Thomas, and Y. G. Rapoport

Abstract: A detailed exposition is presented that explains how magnetooptics and nonlinearity can be combined to give a fascinating degree of control within complex metamaterial waveguide structures. Both strongly and weakly nonlinear waves will be discussed, especially spatial and temporal soliton behaviour. Complex structures will include special waveguides that permit the manipulation of wavepackets amongst which will be speculation about the trapping of rainbows.

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12:45 Multiband small zeroth-order metamaterial antenna Nabil Dakhli, Fethi. Choubani and Jacques David

Abstract: A novel resonant metamaterial antenna based on the Composite Right/Left-Handed (CRLH) transmission line (TL) model is presented. The small antenna is designed to operate simultaneously over multiple wireless services (UMTS-WLAN-WIMAX).

11:15 – 13:00 Radames

Session 3B

Plasmonics

Chaired by: Boris Luk`yanchuk and Anatoly Zayats

11:15 Complementary-split-ring-resonators-based surface plasmons M. Navarro-Cía, S. Agrafiotis, M. Beruete, F. Falcone, M. Sorolla, and S. A. Maier

Abstract: A novel spoof plasmon geometry based on Complementary Split Ring Resonator is shown to be able to route energy with subwavelength in-plane confinement on ultrathin metafilms.

11:30 Pattern formation, dissipative localized structures and spectral narrowing of amplified surface plasmons near the lasing threshold D. V. Skryabin, A. Marini, A. V. Gorbach, and A. Zayats

Abstract: We propose a self-consistent approach to derivation of the amplitude equation for surface plasmon polaritons in the presence of gain, loss and dissipative and Kerr nonlinearities. Our approach allows to explain recently observed spectral signatures of the threshold crossover with amplified plasmons and predicts pattern formation and localized structures of surface plasmons.

11:45 Bandwidth of transformation electromagnetic based devices C. Argyropoulos, E. Kallos, and Y. Hao

Abstract: In this paper the transient responses of devices based on transformation electro-magnetics are studied and explored. The devices are modeled with the Finite-Difference Time-Domain (FDTD) numerical technique. Interesting results are obtained, which will be useful for the future practical implementation of these exotic metamaterial structures.

12:00 Imaging of surface plasmon polariton interference using phase-sensitive photon scanning tunneling microscope J. Jose, F. B. Segerink, J. P. Korterik, J. L. Herek, and H. L. Offerhaus

Abstract: We report the surface plasmon polariton interference, generated via a “buried” gold grating, and imaged using a phase-sensitive Photon Scanning Tunneling Microscope (PSTM). The phase resolved PSTM measurement unravels the complex surface plasmon polariton interference fields at the gold-air interface.

12:15 Surface plasmon interference at metallic surfaces with sub-λ defects R. García-Llamas, J. Gaspar-Armenta

Abstract: The scattering of electromagnetic waves from two-dimensional defects on planar and smooth surface separating a metallic region from vacuum is studied. Numerical results are presented considering only one defect with Gaussian shape and sub-wavelength width and deepness.

12:30 Optical characterization of smooth Ag film by germanium-assisted deposition H. Liu, E. S. P. Leong, Y. Zong, G. Y. Si, J. H. Teng, S. A. Maier

Abstract: We report the smooth Ag film deposition by using Ge seed layers and its optical and plasmonic properties. The Ag film with a thickness of ~50nm is deposited by electron beam evaporation with a thin Ge (2-10 nm) seed layer on (100) Si and quartz substrates. The surface roughness (rms) can be reduced to <0.8nm with the Ge seed layer. The optical transmittance of smooth Ag/Ge film is remarkably reduced while reflectivity is enhanced. The surface roughness reduced Ag film by the Ge seed layer shows enhanced surface plasmon resonance effect based on the measurement and simulation results.

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12:45 Second harmonic generation from a single gold nanoparticle J. Butet, J. Duboisset, G. Bachelier, I. Russier-Antoine, Ch. Jonin, E. Benichou, P. F. Brevet

Abstract: Second Harmonic Generation from a single gold nanoparticle in a homogeneous matrix is reported for the first time and compared to ensemble measurements in solution and Finite Elements Method simulations.

11:15 – 12:30 Ramfis

Special session 3A

Applications of metamaterial concepts to microwave engineering

Organized by: Ferran Martin Chaired by: Ferran Martin

11:15 Invited Dual-band microwave duplexer based on metamaterial concepts Adolfo Vélez, Gerard. Sisó, Miguel Duran-Sindreu, Jordi Bonache and Ferran Martín

Abstract: In this paper, a dual-band microwave duplexer implemented by means of a pair of dualband branch-line hybrid couplers and a pair of dual-band stop band filters is implemented and characterized. The dual-band components of the duplexer are implemented by means of artificial lines (metalines) based on complementary split ring resonators (CSRRs) and split ring resonators (SRRs).

11:35 Invited Extraordinary microwave transmission through sub-wavelength apertures by employing metamaterials and metasurfaces F. Bilotti, L. Scorrano, E. Ozbay, and L. Vegni

Abstract: In this paper, we review the techniques proposed by our research group to dramatically increase the power transmission through sub-wavelength apertures at microwave frequencies. The extraordinary microwave transmission is obtained using either metamaterials (i.e. single-negative materials) or metasurfaces (i.e. frequency selective surfaces). In both designs, the idea is to obtain a strong enhancement of the magnetic field component tangential to the opaque conducting screen, where the aperture is placed. In this way, the equivalent magnetic dipole moment of the aperture is dramatically enhanced, leading to the expected extraordinary microwave transmission. Several numerical and experimental results will be presented.

11:55 Invited Planar superstrate for dual-frequency RHCP-LHCP array Eduardo Ugarte-Muñoz, Francisco Javier Herraiz-Martínez, Javier Montero-de-Paz, Luis Enrique García-Muñoz, Daniel Segovia-Vargas

Abstract: In recent years Fabry-Perot cavities and meta-surfaces have been used as superstrates to improve the radiation performance of planar antennas, such as directivity, mutual coupling on array configuration and bandwidth. These structures usually work for a single polarization and frequency band while an increasing number of applications require multi-frequency operation. In this paper a Fabry-Perot cavity that works with dual polarized and dual frequency patch antennas (rectangular patch excited orthogonally) is proposed in order to design high directivity dual-frequency RHCP-LHCP Arrays.

12:15 Differential transmission line sensor based on metamaterials C. Damm, M. Schüßler, M. Puentes, H. Maune, M. Maasch, R. Jakoby

Abstract: This contribution presents a transmission line sensor based on a composite right/lefthanded

transmission line structure. The sensor features an easy evaluation of the output power by using a differential approach instead of a more difficult direct phase measurement which is commonly used for the class of transmission line sensors. A build prototype operated at 2.3GHz with a high dynamic range of 60dB in the output power variation due to environmental changes is presented. It is realized in a planar microstrip environment on a standard RF soft substrate. Due to its planarity, its cheap standard PC board production and its high sensitivity it seems well suited for biomedical and environmental sensing tasks.

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11:15 – 13:05 The View

Special session 3B

THz and optical plasmonic waveguides and antennas

Organized by: Tahsin Akalin Chaired by: Tahsin Akalin

11:15 Invited Terahertz semiconductor plasmonics Jaime Gómez Rivas

Abstract: I will review in this presentation recent theoretical and experimental work on the excitation, propagation and confinement of SPPs on semiconductor surfaces. In particular I will consider SPPs on extended surfaces and on micro-structured particles or plasmonic antennas. I will show that giant field enhancements in subwavelength regions can be achieved with resonant plasmonic antennas at THz frequencies.

11:35 Invited Towards plasmonic structures with improved performance Alexandra Boltasseva, Rasmus B. Nielsen, Gururaj Naik, Paul West, Naresh K. Emani, Satoshi Ishii, Vladimir M. Shalaev

Abstract: We will review different fabrication techniques for realization of plasmonic waveguide components and metamaterials outlining main features and challenges of different approaches ranging from photo- and electron-beam lithography to nanoimprint. On the path to device applications, methods of improving the structural quality of plasmonic components will also be discussed.

11:55 Invited Surface electromagnetic waves, enhanced light scattering and babinet metamaterials W. J. Padilla

Abstract: Babinet or “inverse” metamaterials yield the complimentary transmissive or reflective properties compared to metamaterials. On the other-hand, the interaction of light with periodic two dimensional hole arrays in thin metals can lead to enhanced light transmission, greater than that expected based on the hole size to wavelength. We elucidate the relationship between subwavelength aperture arrays and Babinet metamaterials and their relation on surface plasmons in the context of optical constants. Experimental results at terahertz frequencies are presented and supported by simulations.

12:15 Invited Terahertz Plasmonic Waves Launchers and Metamaterials Tahsin Akalin

Abstract: Plasmonics are an exciting and very promising research field in different frequency bands. There is an interest at optical frequencies, where the waveguiding properties of these modes are of prime interest, with Long-Range Surface Plasmons Polaritons (LRSPP). We have designed fabricated and characterized THz plasmonic structures on which SPP modes can propagate. We will present in details the excitation of this plasmonic mode which is quasi-TEM. We will give results of electromagnetic simulations and measurements on corrugated structures and also on bendings.

12:35 Tunable metamaterials based on an array of ferroelectric SrTiO3 rods for THz applications R. Yahiaoui, H. Němec, P. Kužel, F. Kadlec, C. Kadlec and P. Mounaix

Abstract: This work presents a theoretical and experimental investigation of a tunable metamaterial which exhibits negative permeability at THz frequency range. The tunability is obtained by temperature changes, and the sample consists of an array of high-permittivity SrTiO3 rods micromachined by a femtosecond laser.

12:50 Measurements of modal symmetry in subwavelength plasmonic slot waveguides M. Spasenovi c, D. van Oosten, E. Verhagen, and L. Kuipers

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Abstract: We excite a guided plasmonic mode in slot waveguides of subwavelength width. With a phase- and polarization-sensitive near- eld microscope, we measure the electric field of the mode for a range of slot widths, from 40 nm to 120 nm. The field is experimentally found to be antisymmetric across the slot gap. Numerical calculations con rm this symmetry. Calculations also show a con nement of the field to a lateral size ~10 times smaller than the free-space wavelength.


Special session 3C

Interesting phenomena and applications of metamaterials and plasmonics

Organized: Sailing He Chaired by: Sailing He

11:15 Substrateless metamaterials at mid-infrared frequencies F. Mattioli, M. Ortolani, R. Leoni, O. Limaj and S. Lupi

Abstract: We report on the fabrication and mid-infrared transmission properties of free-standing thin metal films, periodically patterned with holes at periods down to 2 microns and area of 3x3 mm2. Square grids were fabricated by electron beam lithography and deep-etching techniques and display substrateless holes, with the metal being supported by a patterned dielectric silicon nitride membrane. The mid-infrared transmission spectra of the substrateless grid display extraordinary transmission peaks and resonant absorption lines with a Q-factor up to 22.

11:30 Active coated nano-particles: impact of plasmonic material choice S. Arslanagic and R. W. Ziolkowski

Abstract: The near- and far-field optical properties of a number of active coated spherical nano-particles excited by an electric Hertzian dipole are investigated. Their enhanced, as well as reduced, radiation effects are demonstrated and compared.

11:45 Wideband optical invisibility cloaking through homogeneous multilayered dielectric structure Yijun Feng, Xiaofei Xu, Yu Hao, Juming Zhao, Tian jiang

Abstract: In this presentation, we propose an alternative approach by utilizing a particularly chosen coordinate transformation that could be used to design triangular block to modulate the electromagnetic beam. The resulted carpet cloak is made of simple homogeneous anisotropic material, which could be easily imitated and realized by alternating layers of isotropic homogenous dielectrics. To demonstrate the proposed concept, we have designed an optical carpet cloak in a two dimensional (2D) configuration, which could be realized through a uniform silicon grating structure based on a silicon-on-insulator (SOI) wafer. In the presentation, we will show the design details of the cloak structure and the cloaking performance that has been verified through finite element based full-wave electromagnetic simulation.

12:00 Nonlinear-optical metamirror A. K. Popov, S. A. Myslivets

Abstract: The possibility of creation of highly efficient nonlinear-optical micromirror and all-optical data processing microchip is shown, which utilize backwardness of electromagnetic waves in negative-index metamaterials.

12:15 Inverse transformation optics and reflection analysis for two- dimensional finite embedded coordinate transformation P. Zhang, Y. Jin, and S. He

Abstract: In this talk, inverse transformation optics is introduced, and used to calculate the reflection at the boundary of a transformation medium. A reflectionless condition for the boundary is found as a special case. The theory is verified numerically with the finite element method.

12:30 Transeverse photo-voltage induced by circularly polarized light in metallic fishnet structures: experiment and simulation

T. Hatano, T. Ishihara, Y. Kurami and N. Nishimura

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Abstract: When circularly polarized light is obliquely incident on metallic fishnet structures, electrical voltage is induced perpendicular to the incident plane. The sign of the signal is reversed by changing the sense of polarization or incident angle. The voltage is explained in terms of a DC force on free electrons exerted from electromagnetic field distribution in the structure. The numerical simulation calculated by means of fast multipole boundary integral equation method readily reproduces the experimental results.

12:45 Discreteness effects in metamaterial lens M. Lapine, L. Jelinek, R. Marqués, and M. Freire

Abstract: We analyse the peculiarities in modelling of a finite metamaterial lens for magnetic resonance imaging. We show that discreet structure of the lens should be taken into account in order to describe the lens properties in detail. Nevertheless, we confirm that specifically with MRI setup a continuous model can describe overall behaviour with reasonable precision.

11:15 – 13:10 Amonasro

Special session 3D


Organized by: Ihab El-Kady Chaired by: Augustine Urbas

11:15 Keynote talk Progress on CRLH metamaterials based on dielectric resonators Tatsuo Itoh, Tetsuya Ueda

Abstract: Combination of magnetically-resonant dielectric resonators and TE cut-off waveguide structures provides unbalanced or balanced composite right/left handed transmission lines. This idea has been expanded into 1-D, 2-D and 3-D composite structures, and can be applied to potential microwave and millimeter wave circuits and antennas in the same manner as conventional CRLH transmission lines

11:45 Keynote talk Metamaterial patch antennas and arrays Le-Wei Li and Ke Xiao

Abstract: Although it is easier to realize metamaterials in microwave frequency region for negative refractions, there was still little progress toward practical applications. At microwave frequencies, potential applications include primarily (a) substrate materials for antenna and microwave component designs and fabrications, and (b) absorbing materials for engineering and radar applications. There are, however, still primarily fundamental issues or limitations of metamaterials at microwave frequencies: narrow bandwidth (when both negative permittivity and negative permeability merge in the same band) and high loss (due to the ohmic loss and radiation loss of inclusion elements), and this drawback becomes especially serious when the SRR- and other inclusion-types of metamaterials are used as substrate of the patch antenna. The objective of this paper is thus to enhance, in a completely different approach, the bandwidth and gain of conventional microstrip antenna array by applying the planar metamaterial patterned structures directly on the upper array elements and the bottom ground of the dielectric substrate, so that the antenna array can have high performance.

12:15 Invited Metamaterials for the thermal infrared Michael B. Sinclair

Abstract: Metamaterials form a new class of artificial electromagnetic materials that provides the device designer with the ability to manipulate the flow of electromagnetic energy in ways that are not achievable with naturally occurring materials. However, progress toward practical implementation of metamaterials, particularly at infrared and visible frequencies, has been hampered by a combination of absorptive losses; the narrow band nature of the resonant metamaterial response; and the difficulty in fabricating fully 3- dimensional structures. We will describe the progress of a recently initiated program at Sandia National Laboratories directed toward the development of practical 3D metamaterials operating in the thermal infrared. We will discuss our analysis of fundamental loss

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limits for different classes of metamaterials. In addition, we will discuss new design approaches that we are pursuing which reduce the reliance on metallic structures in an effort to minimize ohmic losses.

12:35 Invited Phase and amplitude resolved characterization of IR metamaterials and metamaterial-based modulators Igal Brener

Abstract: Metamaterials offer a scalable approach for the design of frequency and space dependent permittivity and permeability. In order to validate experimentally these designs, the complex transmission and reflection coefficients need to be measured over some wavelength range (i.e., amplitude and phase). These types of measurements have been available for decades at microwave frequencies but pose serious challenges as the metamaterial designs are pushed towards optical frequencies. In this talk, I will present our progress towards phase resolved optical characterization of passive metamaterials at mid infrared frequencies using interferometric and time-domain techniques, and similar measurements of active metamaterials at terahertz frequencies.

12:55 Tuning of DNG metamaterial superstrate for small and beam steering antenna H. Griguer, E. Marzolf, H. Lalj, M. Drissi and F. Riouch

Abstract: The advanced wireless telecommunications networks ought to have smart antenna systems. For a best quality of service it is necessary to steering the radiation of the antennas in privileged directions, currently the most smart antenna systems are of phase array antenna type. However this technique cannot be used in the mobile terminals which use only single radiation element. In this work we present a small and beam steering antenna using a simple printed patch covered by a tuning metamaterial superstrate.

13:00 – 14:30 Lunch

14:30 – 16:20 Amneris

Session 4A

Plasmonics

Chaired by: Herald Giessen and Adel Elnady

14:30 Keynote talk Plasmonic metamaterials based on metallic nanorod arrays and their applications in nanophotonics and biosensing Anatoly V. Zayats

Abstract: Linear and nonlinear optical properties of plasmonic nanorod arrays will be discussed. The applications in ultrasensitive biosensing, nanoscale waveguiding and active nanoplasmonic devices for all-optical modulation and switching will be overviewed.

15:00 Invited Nonlinear photonics at the nanoscale C. Sibilia

Abstract: An overview of different nonlinear optical phenomena occurring in nanopatterned materials is presented. In particular a discussion about second order nonlinear effects is reported, including also some nonclassical properties of the interaction with non homogeneous materials.

15:20 Mapping nanoscale optical fields with single-photon sensitivity D. Bitauld, F. Marsili, A. Gaggero, F. Mattioli, R. Leoni, S. Jahanmiri Nejad, and A. Fiore

Abstract: We report the first nanoscale (≈50×50 nm2) detector displaying single-photon sensitivity and a nanosecond response. We demonstrate its application to image the diffraction produced by single photons with submicrometer resolution. The nanodetector can also be operated in multi-photon mode, where the detection threshold can be set at N=1, 2, 3 or 4 photons, thus allowing the mapping of photon number statistics on the nanoscale. These detectors could be used as near-field probes in near-field photodetection microscopy.

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15:35 Plasmonic crystal waveguides Slobodan M. Vukovic, Zoran Jaksic, Ilya V. Shadrivov and Yuri S. Kivshar

Abstract: We study the properties of electromagnetic waves propagating along the waveguides with a periodic core created by alternating metal and dielectric layers, the so-called quasi-one-dimensional plasmonic crystal waveguides. Such waveguides can be symmetric or asymmetric depending on the cladding or substrate material properties, as well as on the termination of the periodic structure. We analyze the dispersion characteristics as well as the profiles of the guided modes for several types of the waveguide structures.

15:50 Plasmon enhanced optical trapping of metal nanoparticles: scaling laws and light-driven rotations O.M. Maragò, R. Saija, F. Borghese, P. Denti, M.A. Iatì, P.H. Jones, and P.G. Gucciardi

Abstract: We investigate plasmon enhanced optical trapping of gold nanoparticles and aggregates in an optical tweezers setup. We study experimentally and theoretically the size scaling of optical forces. Moreover we demonstrate light-driven rotations for non symmetric aggregates of gold nanorods.

16:05 Surrounding media sensitivity in hole Arrays and slit arrays J. W. Menezes, Luis F. de Avila, and L. Cescato

Abstract: In this paper we fabricate two types arrays in metallic films: holes and slits and we measure the extraordinary transmittance peaks as a function of the wavelength at the near infrared, for both types of arrays, for different surrounding media.

14:30 – 16:30 Radames

Session 4B


Chaired by: Alain Bossavit and Pavel Belov

14:30 Tunable effective permittivity of composites based on ferromagnetic microwires with high magneto-impedance effect M. Ipatov, G.R. Aranda, V.Zhukova, L. V. Panina, J. González, and A. Zhukov

Abstract: Here we report novel results on the effect of the external magnetic field on the dispersion of the effective permittivity in arrays of parallel Co-based amorphous wires. The magnetic field is applied along the wires sensitively changing their magnetization. Based on the measurements of magnetoimpedance in a single wire and transmission/reflection spectra of composites in free space, we show the correlation between MI and the field dependence of the effective permittivity.

14:45 Finite element modeling of an acoustic cloak for three dimensional flexible shells with structural excitation

W. Akl, T. Elnady, A. Elsabbagh, M. Ramadan

Abstract: Finite element model for three dimensional acoustic cloaks in both cylindrical and spherical coordinates is presented. The model is developed through time-harmonic analysis to study pressure and velocity field distributions as well as the cloak’s performance. The model developed accounts for the fluid-structure interaction of thin fluid-loaded shells. A plain strain model is used for the thin shell. Mechanical Harmonic excitation is applied to the fluid loaded shell to investigate the effect of mechanical oscillation of the shell on the performance of the acoustic cloak.

15:00 Keynote talk Homogenization of metamaterials: bulk properties and boundary conditions A. P. Vinogradov, A. M. Merzlikin, C. R. Simovsky, S. A. Tretyakov, S. Zouhdi

Abstract: This communication is a review of existing in the literature homogenization approaches aimed to describe electromagnetic properties of metamaterials. Firstly, the main features of the homogenization theory are considered. It is shown that the boundary conditions are the necessary part of the homogenization algorithm. Secondly, some approaches to deal with mesoscopic impedance are considered. These are (i) approach of transition layer (Drude, Drude-Simovsky,

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Vinogradov-Makhnovsky- Rosanov, etc) and (ii) matching of analytic continuation of far fields to the boundary (Veinstein, Gralak). Thirdly, the effects of spatial dispersion and ABC are discussed.

15:30 Threshold-free Cerenkov radiation in metallic metamaterials Jin-Kyu So, Jong-Hyo Won, Seung-Ho Bak, Kyu-Ha Jang, D. S. Kim, and Gun-Sik Park

Abstract: We report on the excitation of Cerenkov radiation with no energy threshold in metallic metamaterials, one-dimensional arrays of subwavelength cut-through slits. The considered metamaterial supports Cerenkov wakes via transition radiation at each slit opening, which is analogous to its effective anisotropic dielectric medium.

15:45 Near-field subsurface detection using metamaterial inspired probes Zhao Ren, Muhammed S. Boybay, and Omar M. Ramahi

Abstract: Recently, we showed that single negative media can significantly enhance the sensitivity of near-field probes. Inspired by this recent finding, we propose a new near-field probe that uses only one single split ring resonator instead of a periodic arrangement of these resonators. We show through numerical simulations that the new proposed probe lead to significant enhancement in the sensitivity as measured by the change in phase in the reflection coefficient. Experimental tests were conducted to detect the presence of cracks in aluminum plate, the presence of a small aluminum block located behind a layer of ground chicken (lossy medium), and the presence of a small aluminum block submerged in saline water (lossy medium) whose salinity is 1%. Preliminary results show that the new proposed near-field probe enables successful detection that would have been otherwise impossible using classical near-field probes.

16:00 Near-field scattering by nanoparticles with unconventional scattering properties B. García-Cámara, A. Kern, F. Moreno, F. González and O. J. F. Martin

Abstract: Nanoparticles with electric and magnetic optical properties (e≠1, m≠1) present new and interesting scattering properties, in particular a directional behavior. In this work, we analyze the near-field distribution of the electric field around individual or dimmers of such particles.

16:15 Frequency-domain simulations of a negative-index material with embedded gain Y. Sivan, S. Xiao, U. K. Chettiar, A. V. Kildishev, and V. M. Shalaev

Abstract: We present a frequency-domain model for electromagnetic wave propagation through plasmonic metamaterials with embedded gain. We show that available gain materials can lead to complete loss compensation only if put in the regimes of maximal field enhancement. We derive analytical expressions for the compensation and study the role of gain non-uniformity.

14:30 – 16:15 Ramfis

Special session 4A


Organized by: Ihab El-Kady Chaired by: Paul Braun

14:30 Invited Probing the magnetic field of light at optical frequencies M. Burresi, D. van Oosten, T. Kampfrath, H. Schoenmaker, R. Heideman, A. Leinse, and L. (Kobus) Kuipers

Abstract: In nature, the interaction between matter and light at optical frequencies is dominated by the electric field component of light. It therefore seems impossible to probe the magnetic field component. With the advent of the so-called metamaterials, in which magnetic coupling plays a crucial role, such probing is however highly desirable. Here, we demonstrate a probe that is sensitive to both magnetic and electric field at optical frequencies. Using this probe, we map the electric and the magnetic field of light with phase-sensitivity and sub-wavelength resolution.

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14:50 Invited Near-field electromagnetic effects in thermal radiative transfer and dispersion forces between closely spaced objects Arvind Narayanaswamy

Abstract: In this talk, I will focus on the application of the Dyadic Green’s function technique to near—field radiative transfer and dispersion forces. Despite extensive theoretical predictions of enhancement between parallel surfaces, experimental evidence of near-field radiative transfer in excess of Planck’s limit has been elusive due to experimental difficulties. I will present results of our theoretical and experimental investigations into near-field radiative transfer between spherical surfaces. We have developed a sensitive technique of measuring near–field radiative transfer between a microsphere and a substrate using a bi–material atomic force microscope (AFM) cantilever, resulting in “heat transfer-distance” curves. Measurements of radiative transfer between a sphere and a flat substrate show the presence of strong near–field effects resulting in enhancement of heat transfer over the predictions of the Planck blackbody radiation theory.

15:10 Invited Lasing in selfassembled photonic crystals and glasses Cefe López

Abstract: We consider the case where the scattering is resonant. Photonic glasses can sustain scattering resonances over the gain frequency window, since they are formed by monodisperse spheres. The unique resonant scattering of this material allows to control the laser emission via the diameter of the particles and their refractive index. Our system is therefore a random laser with a priori designed lasing peak within the gain curve. Recent advances in the light loses and gain balance and new highly scattering photonic structures will be reviewed.

15:30 Directed self-assembly of quantum dots in photonic crystal ridges K. Mnaymneh, M. Patterson, D. Dalacu, V. Sazonova, S. Hughes, J. Lapointe, and R. L. Williams

Abstract: We present optical data from single and multiple InAs/InP quantum dots (QDs) deterministically positioned within photonic crystal (PC) ridge waveguides. Spatial placement of these dots is controlled using a directed self-assembly technique that leads naturally to atomically-smooth ridge waveguide sidewalls. Theoretical analysis shows that this PC-ridge waveguide system provides broadband Purcell factor enhancement for planar collection and guidance of emitted single-photons. We investigate the pairwise interaction of single QDs using this waveguide system.

15:45 Polarized InGaN light-emitting diodes by sub-wavelength metallic nanograting Liang. Zhang, Jinghua Teng, Soo Jin Chua, Eugene A. Fitzgerald

Abstract: Linearly polarized light from InGaN green light emitting diode grown on (0001) oriented sapphire is demonstrated by using sub-wavelength metallic nano-gratings. Polarization ratio can reach 7:1 (~88%), the highest ever reported from a single light emitting device. The polarization characteristics are studied and discussed in details.

16:00 Effective control of spontaneous emission in 2D photonic crystals Xue-Hua Wang

Abstract: The switching effect of atomic spontaneous emission (SE) and a significant change of atomic lifetime up to a factor of 33 can be achieved by tuning the polarized orientation of the atoms in two-dimensional (2D) photonic crystals (PCs). This open a new way for the effective control of atomic SE processes in 2D PCs.

14:30 – 16:15 The View

Special session 4B

Analytical methods in theoretical description of metamaterials and plasmonics

Organized by: Arkadi Chipouline Chaired by: Arkadi Chipouline

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14:30 Analysis of a periodically loaded transmission line with position-modulated loads E. S. Sakr and I. A. Eshrah

Abstract: The dispersion behavior of a periodically loaded transmission line is engineered via varying the amplitudes and/or positions of the periodic shunt loads.

14:45 Control of near-field radiative heat transfer via surface phonon-polaritons coupling in thin films M. Francoeur, M. P. Mengücç, and R. Vaillon

Abstract: The possibily of controlling near-field radiative heat transfer via thin films supporting surface phonon-polaritons (SPhPs) is explored. Local density of electromagnetic states (LDOS) within the nanometric gap formed between two silicon carbide (SiC) films and the radiative heat flux exchanged between the thin layers are calculated. Using this information, engineering of desired heat transfer profiles can be obtained, which can be used for the next generation energy harvesting devices.

15:00 Tunable negative index of refraction in ferrite based metamaterial Rui-xin Wu, Guang-hua He, Da-yong Zhou, Yin Poo and Ping Chen

Abstract: In this work, we investigate the tenability of index of refraction of ferrite based metamaterial that has periodic layered structures. For understanding the intrinsic properties and applications of the metamaterial, two configurations are proposed. One is ferrite-semiconductor composite and the other is ferrite-dielectric-mesh composite.

15:15 3D Electromagnetic imaging of dipole field with silver superlens T. Hakkarainen, T. Setälä, and A. T. Friberg

Abstract: We investigate near-field imaging of a point dipole by a 3D imaging system consisting of a thin silver slab embedded between two dielectric materials. We derive the Green tensor for the field transmission through the imaging system and calculate the point-spread function of the imaging system, which enables us to assess, for instance, resolution and image brightness.

15:30 Mie scattering and (ab) normal boundary conditions Henrik Wallen, Ismo V. Lindell, Ari Sihvola

Abstract: We consider the scattering from spheres with the unusual DB, D’B’ and other boundary conditions defined using normal field components.

15:45 How feasible are effective material parameters for metamaterials? C. Rockstuhl, C. Menzel, T. Paul, T. Pertsch, S. Tretyakov, and F. Lederer

Abstract: We derive analytical constraints that have to be imposed on the extent of nonlocality in the scattering response of metaatoms that would allow yet for their unique description in terms of effective material parameters. We show for selected geometries whether this is possible or not.

16:00 Analytic theory of linear plasmonic antennas R. Vogelgesang, J. Dorfmüller, W. Khunsin, C. Rockstuhl, and K. Kern

Abstract: We develop a fully analytical model for the electromagnetic behavior of thin plasmonic wires, i.e., linear plasmonic antennas. It uses only the complex propagation constant of the lowest order wire mode, the reflection phase it suffers at the wire termination, its amplitude, and the amplitude of higher order contributions as adjustable parameters. Our model successfully predicts measured and simulated data in full detail: emission patterns, nearfield optical amplitudes and phases, as well geometric resonances.

14:30 – 16:25 Amonasro

Special session 4C

Phononic crystals and metamaterials

Organized by: Ihab El-Kady Chaired by: Mark Spector

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14:30 Invited Electron-phonon thermal processes in phononic crystals Patrick E. Hopkins

Abstract: In this work, I will discuss the electron and phonon scattering mechanisms contributing to the reduction of thermal conductivity and thereby enhancement of the thermoelectric figure of merit in phononic crystals. The phonon transport in the periodic structures is analyzed by considering umklapp and boundary scattering based on the phononic crystal geometry. Additional phonon thermal conductivity reduction is considered from the porous nature of the structure. The phonon thermal conductivity is predicted to decrease to less 15% of the bulk value by only considering the phonon scattering mechanisms. The change in electron-phonon scattering – the dominant mechanism of electrical resistivity around room temperature – due to the reduced phonon spectrum is accounted for in the free electron approximation, showing that the thermoelectric figure of merit will continue to increase with an increase in acoustic band gap in phononic crystals. Preliminary experimental results are discussed focusing on measurements of the thermal conductivity of phononic crystals.

14:50 Invited Analysis of the dynamics of phononic crystals by Bloch mode decomposition M. I. Hussein

Abstract: We present the concept of Bloch mode decomposition for phononic crystals and periodic structures in general. First we present reduced Bloch mode expansion, which is essentially an approach for fast band structure calculations by modal analysis. The expansion employs a natural basis composed of a selected reduced set of Bloch eigenfunctions. The reduced basis is selected within the irreducible Brillouin zone at high symmetry points determined by the medium’s crystal structure (and possibly at additional related points). At each of the reciprocal lattice selection points, a number of Bloch eigenfunctions are selected up to the frequency range of interest for the band structure calculations. Being in line with the well known concept of modal analysis, the proposed approach maintains accuracy while reducing the computation time by up to two orders of magnitudes or more depending on the size and extent of the calculations. We then continue to use the proposed decomposition approach to study the nature of the wave propagation modes in phononic crystals in both the infinite and finite configurations.

15:10 Invited Micro and nano fabricated phononic crystals: technology and applications Roy H. Olsson III, Mehmet Su, Peter Rakich, and Ihab El-Kady

Abstract: This talk will present theoretical and technology considerations necessary for realizing phononic band-gap crystals and devices at the micro and nano scales. Impacts of phononic band-gap theory on material selection and fabrication limitations will be discussed. Phononic crystal devices operating in the very (30-300 MHz), ultra (300- 3,000 MHz) and super (3,000-30,000) high frequency bands will be presented. Finally, potential applications of phononic crystal devices in the areas of RF communications and thermal management will be explored. Advantages of phononic crystal technology over current state-of-the-art and the required dimensions, frequency span, and material losses for each application will be presented.

15:30 Invited Band gap engineering in phononic crystal slabs B. Djafari Rouhani

Abstract: I discuss some of the recent theoretical works in my group dealing with phononic crystals of finite thickness. The existence of absolute band gaps and defect modes have been studied in two types of crystals, namely holes in a silicon membrane or dots on top of a membrane. The simultaneous occurrence of phoTonic and phoNonic band gaps is investigated for different lattices in a air/Si membrane. We also report a calculation of the thermal conductivity in a Si membrane covered with stretched Ge dots.

15:50 Invited Acoustic filter based on coupled resonators in phononic crystal slabs Abdelkrim Khelif

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Abstract: In this paper we demonstrate experimentally the possibility of forming a new acoustic filter structure based on the CRAWs with superior performance over the conventional filters. The structures are made by etching an array of microsize holes in a silicon membrane. This phononic slab structure exhibit a complete phononic band gap. The filter is composed of several single resonators that are coupled periodically through evanescent waves due to the complete acoustic band gap of the slab. Under certain conditions, selective filter modes occur within the omnidirectional bang gap. In this case, the elastic energy is localized in the extended defect formed by the collective coupled resonators.

16:10 Scattering by a nihility elliptic cylinder A.-K. Hamid and M. I. Hussein

Abstract: The scattering efficiency of a nihility elliptic cylinder illuminated by an axially incident plane electromagnetic wave is obtained by solving the analogous problem of scattering of the plane wave by a dielectric elliptic cylinder of the same size, and letting its refractive index approach zero.


Special session 4D

THz and optical plasmonic waveguides and antennas

Organized by: Tahsin Akalin Chaired by: Tahsin Akalin

14:30 Invited Extraordinary-transmission-based devices M. Sorolla, M. Beruete, M. Navarro-Cía, F. Falcone, I. Campillo, and S.A. Kuznetsov

Abstract: Extraordinary Transmission is shown as a route to enhance the performance of metamaterials-based structures for free-space applications such as antennas.

14:50 Invited New concepts in spoof surface plasmon polariton metamaterials Stefan A. Maier

Abstract: A variety of new approaches to create high-confinement surface waveguides based on spoof surface plasmon polaritons in the infrared part of the spectrum will be presented. This includes planar structures with an improved trade-off between confinement and bandwidth as well as cylindrical waveguides. Design fundamentals and implementations will be discussed.

15:10 Invited Planar terahertz guided-wave devices using plasmonic metamaterials Ajay Nahata

Abstract: In contrast to developments at optical frequencies, few options exist for creating planar waveguide geometries at terahertz frequencies. This situation exists because of the lossy nature of almost all dielectrics in the far-infrared region of the electromagnetic spectrum. In this work, we discuss our experimental work in designing, fabricating and characterizing a number of low-loss planar THz waveguide devices based on periodically perforated metal films.

15:30 Invited Subwavelength confinement of Sommerfeld waves on tapered wire waveguides Daniel Mittleman

Abstract: The idea of using tapered wire waveguides to confine terahertz surface plasmons to subwavelength dimensions has attracted a great deal of attention recently. We present experimental studies of the field confinement at the end of a tapered wire. We observe tip-size-limited field distributions, with dimensions on the order of lambda/100.

15:50 Localized nanoscale heating using plasmonic nano-antennas K. Sendur, A. Kosar, and M. P. Menguc

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Abstract: Localized nanoscale heating of a sample using an optical nano-antenna is investigated. A nano-optical antenna is excited at the plasmonic resonance to improve near-field radiative transfer and localized heating.

16:05 Bowtie aperture as an electric field nanosensor M. Mivelle, T. Grosjean, F. Baida and G. Burr

Abstract: This paper focuses on the concept of fiber-integrated gap-based nanoantennas (dipole and bowtie nanoantennas as well as bowtie apertures) for electric optical field nanosensing. We show that this new kind of nanocollectors is sensitive to a single component of the probed optical electric field distributions with a lateral resolution defined by the size of the gap.

16:20 Coupling of gap plasmons in multi-wire waveguides A. Manjavacas, F. J. Garcia de Abajo

Abstract: Starting with the basic element defining a gap plasmon, consisting of two neighboring silver wires, we explore the hybridization of such modes in aligned metal wires. In particular, we study analytically and numerically the interaction between the gap modes of two neighboring wire-pairs as a function of the spacing between them. The interaction of gap modes in a system formed by three wires is also investigated.

16:30 – 16:45 Coffee break 17:00 – 20:00 Pyramids Sound and Light Show (departure from Marriott at 5:00 PM)

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Wednesday February 24, 2010


Plenary session IV

Chaired by: Ari Sihvola and Vladimir Shalaev

08:30 Keynote talk Reducing the losses in photonic metamaterials Costas Soukoulis

Abstract: In current negative-index optical metamaterials, the damping is too large for real-world applications. It is presently unclear how much this can be improved by modified designs and other choices of constitutive materials. I will present strategies on how to reduce the losses in metamaterials. One of the key ideas is to perform self-consistent calculations to incorporate gain in metamaterials to compensate for losses.

09:00 Keynote talk Cloaking with simple metal structures Sergei Tretyakov, Pekka Alitalo, Olli Luukkonen, Constantin Simovski, Henrik Kettunen

Abstract: In this review presentation we will discuss the use of artificial electromagnetic materials (metamaterials) for broadband cloaking applications. We will review our recent results on the cloaking techniques, which employ structures made of ordinary metals and do not require any exotic materials with extreme effective parameters. We will show how a mesh of metal conductors can transport electromagnetic waves leaving some space free of the fields (that is, cloaked). Broadband antenna applications in reducing coupling between antennas and nearly positioned large metal structures and in removing reflections from microwave lenses will be demonstrated. Furthermore, we will present a cloaking structure composed of a set of thin metal sheets, which can cloak electrically long objects from electromagnetic radiation polarized along the object axis. In contrast to the known approaches based on transformational optics, this design does not need any exotic materials (only metal sheets), which helps to design broadband cloaks. With an appropriate choice of the structure dimensions, this cloak can operate at frequencies from microwaves to the visible light. Experimental results of a microwave design confirm cloaking in a wide frequency range. Furthermore, we will present a comparison of different cloaking techniques for hiding objects from electromagnetic pulses.

09:30 Keynote talk Nonlinear metamaterial and plasmonic structures Yuri S. Kivshar

Abstract: We review our recent results on theoretical and experimental studies of nonlinear metamaterials with tunable magnetic and electric resonance. We also discuss several nonlinear effects in metal-dielectric plasmon polatiron structures such as the formation of spatial plasmon solitons and the second-harmonic generation in metal-dielectric-metal slot waveguides.


Coffee break & Poster session IV

Chaired by: Alexander Merzlikin

D1 Microwave frequency selection by active plasma photonic crystal Max Chung and Shiaw Hwei Chen

Abstract: Here a photonic crystal composed of DC plasma column is tested, and frequency selectivity in microwave range is achieved. Plasma is a dispersive medium, and its reflective index is a function of electron density and temperature, which are controllable via adjustments in input power.

D2 Distance dependent back coupling efficiency between chromophores and surface Plasmon polaritons on gratings

Amal Kasry

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Abstract: In this work, we have studied surface plasmon polaritons excited by a dye molecule on the surface of a grating. These polaritons can couple out to bulk radiation by scattering from the grating, and the emitted light comes off in certain well-defined directions.

D3 Nanoscale plasmonic waveguides with cavities for filtering and demultiplexing of the telecommunication and visible wavelengths

A. Noual, A. Akjouj, Y. Pennec and B. Djafari-Rouhani

Abstract: Numerical simulations, based on a FDTD (finite-difference-time-domain) method, of light propagation for add/drop filtering in two-dimensional (2D) metal-insulator-metal (Ag-SiO2-Ag or Ag-Air-Ag) resonators are reported to design 2D Y-bent plasmonic waveguides with possible applications in telecommunication WDM.

D4 Some left handed structures for microwave devices I.A. Mocanu, M. G. Banciu, N. Militaru, G. Lojewski

Abstract: In this paper, there are carried some investigations on microwave devices obtained by modeling left handed periodic, unit cells in microstrip technology. The structures are analyzed in a broadband range (1-7 GHz) and the magnitude and phase of the S parameters reveal new properties, different from conventional microstrip devices.

D5 Thin-film polarizer made of heterogeneous medium Sergey G. Moiseev

Abstract: Reflection and transmission of a composite medium consisting of a transparent dielectric matrix with inclusion of silver ellipsoidal nanoparticles are investigated theoretically. It is shown that anisotropic plasmonic absorption in nanoparticles leads to polarization-dependent reflectance and transmittance of composite coating on a substrate.

D6 Monolithic excitation and manipulation of surface plasmon polaritons on a vertical cavity surface emitting laser

J.-M. Lamy, J. Justice, G. Lévêque and B. Corbett

Abstract: We report the manipulation of surface plasmon polaritons (SPPs) on a thin Au layer integrated on top of the mirror of a vertical-cavity surface-emitting laser (VCSEL) along with their subsequent extraction to air. Gratings etched into the Au layer to different depths are used to couple the light into and out of the film, and to bend the trajectory of the SPP. The result paves the way to compact integrated plasmonic devices.

D7 Sensitivity enhancement in optical waveguide sensors using metamaterials S. A. Taya and M. M. Shabat

Abstract: We consider a four-layer waveguide structure as an optical waveguide sensor. One of the layers is a metamaterial with negative permittivity and permeability. We show that the sensitivity of the proposed optical waveguide sensor can be dramatically enhanced by using the metamaterial between the guiding and the cladding layers. The variation of the sensitivity of the proposed waveguide sensor with different parameters of the waveguide is studied.

D8 Fabrication of membranes for extraordinary optical transmission G. Zacco , T. Ongarello , G. Ruffato , D. Garoli, H.K. Kang, M. Prasciolu, M. Natali, M.Tormen

and F. Romanato

Abstract: The aim of our work is to develop a proper fabrication process to realize plasmonic arrays on thin membranes that allow extraordinary transmission of light. 1D nano-slits arrays were fabricated by a 30keV electron beam lithography process and gold electroplating on silicon nitride membranes. We use numerical simulations and optical characterization techniques to measure transmission spectra and validate our fabrication results.

D9 Multilayer based interferential-plasmonic structure: metal cluster 3D grating combined with antireflective coating

V. Janicki, J. Sancho-Parramon and H. Zorc

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Abstract: A three dimensional (3D) photonic microstructure consisting of metal clusters embedded in dielectric matrix is coated with a multilayer antireflective coating. The produced photonic structure shows optical behaviour that combines the interferential effects of the multilayer stack and the surface plasmon resonance of metal clusters. Due to its feasibility and the possibility to widely modify the optical properties of the resulting interferential-plasmonic structure, this approach represents a promising method for the production of novel optical components.

D10 Composite medium with silver nanoparticles as single-layer low-reflection interference coating Sergey G. Moiseev, Sergey V. Vinogradov

Abstract: In this work, we consider the possibility of producing of a low-index coating material consisting of transparent dielectric matrix with inclusion of silver ellipsoidal nanoparticles. The applicability of the effective medium model for describing the optical properties of thin composite film with moderate volume fraction of inclusions is verified.

D11 Optical and structural properties of Au-Ag islands films for plasmonic applications J. Sancho-Parramon, V. Janicki, M. Lončarić, H. Zorc, P. Dubček and S. Bernstorff

Abstract: Bimetallic metal islands films consisting of Au-Ag nanoparticles are deposited on glass substrates and annealed at different temperatures. Broad tuning of the surface plasmon resonance (SPR) characteristics can be achieved by controlling film composition, deposition temperature and annealing temperature. Optical and structural characterization of the samples enables to establish the link between the SPR and the morphological and compositional characteristics of nanoparticles.

D12 Homogenization of the susceptibility kernel for bianisotropic media M.H. Belyamoun, S. Zouhdi, O. Dubrunfaut, F. Ossart, M. Ahachad and R. Dkiouak

Abstract: We use the periodic unfolding method to retrieve the effective parameters of a two–phase mixture. In particular, we computed, in the time domain, the equivalent dispersive function of bianisotropic materials.

D13 Novel printed planar antenna using split ring resonator O. El Mrabet, M. Goulouh, M. Aznabet, F. Falcone, M. Khalladi, M. Essaaidi and M. Sorolla

Abstract: In this paper, we report a new design of a printed planar antenna using split ring resonator (SRR). The designed antenna consists of two SRRs, with the same geometrical parameters, printed on different side of the substrate. This antenna has a simple configuration, low profile, and can be easily integrated with other RF front-end circuits in a PCB.

D14 Spectral characterization of photonic crystal fibers fundamental mode for supercontinuum light generation in femtosecond regime

J.P. Segaud, T. Dartigalongue and G. Canat

Abstract: The photonic crystal fibers (PCF) fundamental mode is investigated in terms of propagation constant and energy effective area. The spectral variation of these parameters is computed for different types of PCFs. This step is necessary before modeling the supercontinuum light generation in femtosecond regime.

D15 Enhanced magnetization and excellent polarization in Bi5FeTi3O15 thin films modified by cobalt ions

Wei Wang, Xin Hu, Xiang-yu Mao, Xiao-bing Chen

Abstract: The Co-doped Bi5FeTi3O15 thin films (BFCT-x) were deposited using a modified sol-gel route and their magnetic and ferroelectric properties were investigated. X-ray diffraction scanning confirmed the pure phases in all the doping cases and the surface morphology and cross-sectional picture of as-prepared thin films are well-defined.

D16 Continuously shaping the morphology of metallic colloids in a periodic format Zhen-Lin Wang

Abstract: Here we demonstrate how a large-scale two-dimensional (2D) array of metal colloids with a precise control of their morphologies, continuously shaping from hollow hemispheres to nanocups, nanoshells, nanospheres and hybrid structures, can be fabricated through confined electrochemical

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growth within templated organic porous molds. Our ability to control the shape of local elements allows for tunability of the optical response of the periodic metallic colloids over the near-infrared range. The prepared novel plasmonic crystals could find applications in optics, optoelectronics, materials science, sensing and biophysics.

D17 Half-wavelength metamaterial stepped impedance resonator (SIR) S. Karimian, M. Abdalla, Z. Hu

Abstract: This paper presents a λg/2 microstrip Stepped Impedance Resonator (SIR) based on Composite Right/Left-Handed (CRLH) transmission line for the first time. The SIR resonates at 2.1 GHz for Wireless Local Area &etwork (WLA&) applications. Supported by theory and full-wave simulations, a comparison is made between this design and its conventional counterpart. The CRLH SIR design presented in this paper is not only 44.76% smaller in length than its conventional counterpart, but also benefits from a much better performance.

D18 Calculation of surface impedance for high impedance surfaces Yu Zhu, Said Zouhdi

Abstract: Different analytical and numerical methods of calculating the surface impedance of a high impedance surface (HIS) structure have been studied and compared. Two novel approaches to estimate the surface impedance are proposed and applied to general HIS structures (including asymmetric planar structures). These numerical methods based on the three dimensional finite element method (FEM) using edge element.

D19 Optical Waveguide Sensors Using Double Negativity Guiding Layer Sofyan A. Taya, Hala Khozedar, Mohammed M. Shabat and Emad M. Mehjez

Abstract: We examine a three-layer waveguide structure as an optical sensor for the homogeneous sensing applications. The core layer of the proposed structure is considered as Left-Handed Material (LHM) with simultaneously negative electric permittivity ε and magnetic permeability µ. We also assume the cladding layer to have an intensity-dependent refractive index. The sensitivity of the proposed optical waveguide sensor is derived and its dependence on the different parameters of the waveguide is studied.

D20 Fabrication of photonic (quasi-)crystals by nano sphere multiple exposure lithography method

Jong-Bin Yeo and Hyun-Yong Lee

Abstract: In this study, we found out the new fabrication process condition for Photonic crystals (PCs). PCs were fabricated by nano sphere exposure lithography (NSEL), instead of commonly used electron beam lithography (EBL). Because PCs demand periodic nano structure. NSEL process enables periodic large area fabrication of PCs. We also propose nano sphere multiple exposure lithography (NSMEL). NSMEL has been more integrated PCs pattern and variable structure (i.e., any fold- quasicrystals).

D21 Characterization of single nanoparticles with highly focused polarization tailored light beams

T. Bauer, P. Banzer, U. Peschel and G. Leuchs

Abstract: We present an optical approach to characterize single sub-wavelength nanoparticles by means of polarization tailored eld distributions generated by highly focused radially and azimuthally polarized doughnut beams. These eld structures enable the distinction between di erent particle shapes as well as their orientation.

D22 Planar double-periodic structures with trapped light Vyacheslav V. Khardikov, Ekaterina O. Iarko, and Sergey L. Prosvirnin

Abstract: The problem of infrared light diffraction by planar 2-D periodic metal-dielectric structures with a periodic cell consisted of two complex-shaped asymmetric metal elements was solved. The conditions of light confinement by excitation of trapped mode resonances of the structures were studied. Existence of a high order trapped mode resonance with a quality factor larger than the quality factor of the lowest resonance was shown for the first time.

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D23 Analytical methods for AMC and EBG characterizations M. Grelier, F. Linot, A. C. Lepage, X. Begaud, J.M. LeMener and M. Soiron

Abstract: AMC and EBG behaviours are respectively characterized by reflection phase method and dispersion diagram. A fast and simple analytical model based on transmission line theory is proposed for each analysis. The validity of these analytical methods is verified by a comparison between circuit representations, measurements and numerical results.

D24 Optical devices based on materials with negative refraction V. S. Gorelik and V. V. Shchavlev

Abstract: The current paper presents an overview of the physics of the negative refraction. It derives Abbe invariant for media with positive and negative refractive index. It also develops a formula to calculate the distance to the image and a formula for the magnification given by the various superlenses. We introduce a schematic diagram of "superfocuser", "supermicroscope" and "superspectrograph" - devices based on materials with negative refraction. We also evaluate the magnification given by superlenses installed in the superfocuser and supermicroscope and calculate linear dispersion of the superspectrograph.

D25 Slow light propagation through longitudinally extending metamaterial waveguides K.-Y. Kim

Abstract: Here we report the propagation of slow light in the metamaterial waveguide having longitudinally increasing core width. It is shown that the nearly-zero propagation constant of the guiding mode, which is a unique characteristic of the waveguide structure adopting the interfaces between dual singly negative metamaterials, plays key roles in this novel phenomenon.

D26 General formulation of permittivity tensor for minimal backscattering from uniaxial anisotropic spheres

H. -Z. Liu, Joshua L. -W. Li, S. Zouhdi and M. S. Leong

Abstract: Full wave analysis of scattering of plane waves from uniaxial anisotropic spheres has been carried out for achieving minimal backscattering. Relationship between permittivity in the radial and transverse directions has been analytically established at zero backscattering for electrically small spheres. Electrically large spheres have also been considered. Furthermore, results have been extended to coated spheres.

D27 Phase change associated with resonant surface plasmon polariton-assisted transmission in nanohole arrays

T. Yang and H. P. Ho

Abstract: We report FDTA simulation results demonstrating that the optical phase change of surface plasmon polariton-assisted transmission through nanohole arrays in a gold film undergoes a sharp change under resonant conditions. The phenomenon can be explained by various resonant modes between the nanoholes. We further explore the possibility of using this effect for phase-sensitive surface plasmon resonance biosensing applications.

10:45 – 12:05 Amneris

Session 5A

Metamaterial-inspired devices, components, and antennas

Chaired by: Richard Ziolkowski and Che Ting Chan

10:45 Invited Light transport in disordered rod-type metamaterials Didier Felbacq, Kevin Vynck and Brahim Guizal

Abstract: Light transport in two-dimensional disordered metamaterials made of high-permittivity rods is studied theoretically. Distinct regimes of transport are identi ed and explained in terms of coupled electric and magnetic dipolar resonances. The dielectric optical features of the structure are found to be weakly perturbed by structural disorder and light propagation at frequencies close to the magnetic dipole resonance is shown to rely on hybrid, necklace-like, states.

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11:05 Antennas and filters based on EBG with hollow defects I. Khromova, R. Gonzalo, I. Ederra and K. Esselle

Abstract: In this work a new integrated scheme of frequency selective transmission based on electromagnetic band gap (EBG) technology is presented. In the proposed configuration the radiofrequency signal is received by an EBG horn antenna and then filtered by an EBG cavity via the resonant coupling between two closed EBG waveguides and an EBG hollow defect (waveguide-to-cavity-to-waveguide coupling). The paper demonstrates the concept of using hollow EBG defects for integrated devices for submillimetre wavelenghts.

11:20 Thin-film sensing using circular split-ring resonators at mm-wave frequencies A. Elhawil, J. Stiens, C. De Tandt, W. Ranson and R. Vounckx

Abstract: In this paper, we investigate a thin-film sensing approach using split ring resonators. The sensitivity based on tuned magnetic resonant has been demonstrated using three methods: by depositing the film in the gap, under the rings as an intermediate layer and on the rings as an overlayer. The numerical simulations and experimental results are presented. In addition, the advantages and the limitations of each approach are discussed. Moreover, the sensitivity of the circular rings are compared with that of the square rings.

11:35 Dual mode composite right-left handed unit cells Amr M. E. Safwat

Abstract: This paper presents a new category of composite right-left-handed (CL-CRLH) unit cells.The new cells rely on complementary stubs, e.g. open and short circuited stubs in planar transmission lines or dual modes in coupled lines. They have geometrical circuit model, do not rely on commercial off-the-shelf components, and do not require vias. Theoretical expectations have been confirmed by EM simulations and measurements.

11:50 Investigation of backward-wave propagation on LHM Split Ring H. Talleb, Z. Djeffal, D. Lautru and V. Fouad Hanna

Abstract: Full-wave electromagnetic rigorous simulations of a structure composed of split ring resonators (SRRs) have demonstrated backward-wave propagation along the structure of elliptically polarized eigenwaves. This result confirms that an increase of magnetoelectric gyrotropic activities inside a bianistropic chiral medium can lead to a left-handed material (LHM) as predicted by the recently chiral medium works.

10:45 – 12:50 Radames

Session 5B


Chaired by: Ricardo Marques and Alex Schuchinsky

10:45 Babinet’s principle and the dispersion of surface waves on complementary patterned metal arrays J. D. Edmunds, M. C. Taylor, A. P. Hibbins, J. R. Sambles and I. J. Youngs

Abstract: The microwave response of an array of square holes in a metal film, and its complementary structure, an array of square metal patches, has been experimentally studied in the microwave regime. Diffractively coupled surface waves are supported on each of these structures, and have been recorded in transmission for p− (TM) and s− (TE) polarised radiation. Their dispersive nature is found to be dependent on the electromagnetic linkages between elements in the arrays. Results are in good agreement with Babinet’s principle.

11:00 A new model of dispersion for metals leading to a more accurate modeling of plasmonic structures using the FDTD method A. Vial and T. Laroche

Abstract: We show that it is possible to increase the accuracy of gold, silver, chromium and aluminum permittivity description by using the Drude-Critical points model rather than the widely used Drude-

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Lorentz model. We also show the effect of this improvement on the extinction efficiency and near- field intensity precision.

11:15 Keynote talk Time-reversal in metamaterials Mathias Fink

Abstract: Time-reversal mirrors refocus an incident wave field to the position of the original source regardless of the complexity of the propagation medium A time-reversal mirror acts as an antenna that uses complex environments to appear wider than it is, resulting in a refocusing quality that does not depend on the time-reversal antenna aperture. One spectacular result that is shown in this presentation deals with metamaterial located in the near field of the source. Such microstructure can be made, for example, of random or periodic distribution of resonating scattererers with a mean distance smaller than the wavelength. It will be shown that, for a broadband source located inside such metamaterials, a time-reversal mirror located in the far field radiated a time-reversed wave that interacts with the random medium to regenerate not only the propagating but also the evanescent waves required to refocus below the diffraction limit. This focusing process is very different from the one developed with superlenses made of negative index material only valid for narrowband signals. We will emphasize the role of the frequency diversity in time-reversal focusing and a modal description of the spatio-temporal focusing will be presented that shows the super-resolution properties obtained with some metamaterial with microwaves.

11:45 Invited Electromagnetic wave diffraction by array of complex-shaped metal elements placed on magnetized ferrite slab S. L. Prosvirnin and V. A. Dmitriev

Abstract: Full wave numerical study of electromagnetic wave reflection from and transmission through an array of thin, perfect conducting, planar strip complex-shaped elements placed on a magnetized ferrite substrate is carried out. Our results show, that the absorption level and the frequency band of the structure, when the ferromagnetic resonance and a metal element resonance are close in frequency, are larger than the corresponding characteristics of the ferrite layer without metal elements.

12:05 Photonic crystal band structure calculation by modal analysis M. I. Hussein

Abstract: We present a novel method for photonic crystal model reduction which enables efficient band structure calculations. In our method, which we refer to as Reduced Bloch mode expansion, we employ a natural basis composed of a selected reduced set of Bloch eigenfunctions. The reduced basis is selected within the irreducible Brillouin zone at high symmetry points determined by the photonic crystal structure and group theory. At each of the reciprocal lattice selection points, a number of Bloch eigenfunctions are selected up to the frequency range of interest for the band structure calculations. Being in line with the well known concept of modal analysis, the proposed method maintains accuracy while reducing the computation time by up to two orders of magnitudes or more depending on the size and extent of the calculations.

12:20 Enhancing the bandwidth of metamaterial by using inhomogenous magnetic substrate Hongsheng Chen, Liang Huang, Xiangxiang Cheng

Abstract: We show that by using inhomogenous magnetic substrates, whose permeability in the interior area of the metamaterial patterns is much larger than that outside of the pattern, the bandwidth of the left-handed metamaterial can be greatly enlarged. The relation between the bandwidth and the substrate parameters are shown theoretically. Experiments are carried out to verify this point.

12:35 Solitons solutions for surface acoustic waves and gap photonic antennae O. Tekkouk and M. Benslama Abstract: Using a finite difference method, we solve a system of two and three non linear coupled Korteweg de Vries equations in the case of piezoelectric substrate. We prove that the multicoupled system of non linear KdV (Korteweg de Vries) equations can lead us to solitons and anti solitons

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solutions solitary as gap-soliton made up of solitons envelopes. An Application at spread spectrum is attended for surface acoustic waves communications and gap photonic antennae.

10:45 – 13:05 Ramfis

Special session 5A

Wideband applications of metamaterials

Organized by: Xavier Begaud Chaired by: Xavier Begaud

10:45 Invited Nth order rose curve as a generic candidate for RF artificial A. Kabiri and O. M. Ramahi

Abstract: In recent work, we demonstrated that the permeability and magnetic loss tangent of artificial magnetic material inclusion can be represented simply in terms of the circumference and area of the inclusion. While such representation makes direct use of the inclusions's circuit model, the fact that the magnetic properties can be described in terms of the perimeter and area of the inclusion allows us to design inclusion to achieve specific constraints without the need for intensive full-wave trial and error simulation procedure. Because of such flexibility, here, we propose a new set of generic curves described as nth order rose curves as candidates for AMMs. In fact, the new curves, not only provide significant design flexibility but provide features not present in traditional topologies, most pronouncedly, wider band over which negative permeability is achieved with minimized dispersion.

11:05 Invited Enhancing the bandwidth of coaxial aperture arrays in the radar frequencies S. Nosal, P. Soudais, and J.-J. Greffet

Abstract: Arrays of coaxial cavities in a silver slab are angle-independent frequency selective structure in the optical wavelengths. We show that understanding major resonant effects can achieve a similar structure in the radar frequencies. We use numerical modeling (biperiodic BI method) to explain resonances and their mutual coupling. We suggest a geometrical evolution of the coaxial cavities that favors an enhanced bandwidth under oblique incidence in TM polarization.

11:25 Invited Eigenmode and array-scanning approaches for the analysis of wide-band metamaterials N. A. Ozdemir, X. Radu, R. Mateos and C. Craeye

Abstract: Metamaterials are -often periodically- structured materials that exhibit extraordinary behavior within some frequency ranges. This extraordinary behavior is very often due to resonant particles, which often create very strong fields within a narrow bandwidth when confined to small volumes with respect to wavelength. The strong fields can lead to efficiency problems when the constitutive materials are not perfectly lossless, while bandwidth limitations may narrow the range of applications. A possible route to overcome these limitations is to distribute the resonances over larger domains by coupling the resonant particles with each other or to lengthen the domains over which resonance occurs. In this paper, we will present three applications of wide-band metamaterials with a special focus on the numerical analysis with the help of the Method of Moments.

11:45 Invited Broadband filters based on OSRR and OCSRR balanced composite right/left handed transmission lines Miguel Durán-Sindreu, Adolfo Vélez, Jordi Bonache and Ferran Martín

Abstract: In this paper, filters implemented by combining open split ring resonators (OSRRs) and open complementary split ring resonators in a composite right/left handed line configuration are pointed out. The relevant aspect of the approach is that it is possible to implement standard responses (Butterworth or Chebyshev) with broad bandwidths. Also, due to the small electrical size of the employed resonators, the filters are very compact.

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12:05 Invited Wideband FSS for Electromagnetic Architecture in buildings B. Sanz-Izquierdo, E. A. Parker, J-B. Robertson and J.C. Batchelor

Abstract: Interweaving the elements of a frequency selective surface (FSS) is a technique that allows wideband frequency filtering as well as size reduction. FSS structures using this method suit particularly to wireless indoor applications where the operating bands are spread over a wide spectrum. Interwoven square loop slots FSS have been designed, fabricated and measured. The FSS structure to be presented offers transparency at the emergency services band at around 400 MHz and suppresses most of the mobile and wireless bands up to 3GHz. The size of the unit cell developed is around 3% the corresponding wavelength, significantly smaller than a half wavelength resonant dipole.

12:25 Invited Novel magnetic properties for compact broadband LH metamaterials devices M. A. Abdalla and Z. Hu

Abstract: Left handed (LH) Metamaterials (MTMs) are characterized by unique microwave properties which make them interesting for microwave engineering community. Examples for these properties comprise circuit miniaturization, Multi-band frequency ranges and broadband operation compared with conventional design. Design, realizations and characterization of broadband tunable LH metamaterial components, such as transformer and coupler are presented here.

12:45 Invited Wideband QAMC reflector's antenna for low profile applications M. Grelier, M. Jousset, S. Mallégol, A. C. Lepage, X. Begaud and J.M. LeMener

Abstract: We propose a wideband reflector’s antenna based on EBG theory. An Archimedean spiral has been backed to this new reflector. In comparison to classical solution using absorbent, the prototype presents a very thin thickness λ/15 at the lowest operating and an improved gain over a 2.34:1 bandwidth.

10:45 – 12:30 Amonasro

Special session 5B

Characterization of electromagnetic properties of metamaterials; ECONAM project activity review

Organized by: Alexey Vinogradov Chaired by: Alexey Vinogradov

10:45 Direct experimental optical characterization of metamaterials E. Pshenay-Severin, F. Setzpfandt, C. Helgert, Uwe Hübner, C. Menzel, C. Rockstuhl, A. Tünnerman, F. Lederer, and T. Pertsch

Abstract: We present a method to determine the complex reflection and transmission coefficients of metamaterials by purely experimental means in the optical domain. In order to de ne effective constants of the metamaterial without resorting to simulations, we employ a white-light interferometer for phase and a spectrometer for amplitude measurements. The method is applied for two referential metamaterial geometries: the fishnet and the double-element structure. Problematic aspects of the phase measurements as well as the accuracy of the method are discussed.

11:00 Anisotropic disorder in optical metamaterials C. Helgert, C. Rockstuhl, B. Walther, A. Chipouline, C. Etrich, E.-B. Kley, F. Lederer, and T. Pertsch

Abstract: We consider the impact of anisotropic disorder in a metamaterial on its optical properties. The work is done experimentally and theoretically; both are in excellent agreement. We detail how the dipole interaction between neighboring meta-atoms affects the overall spectral response.

11:15 Cross-section measurements of a metamaterial cloak based on transformation optics N. Kundtz, D. Gaultney, and D. R. Smith

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Abstract: A quantitative experimental analysis of an electromagnetic, metamaterial cloaking structure is presented in which the scattering cross-section (SCS) of a cloaked object is measured as a function of frequency. The SCS of a 50 mm wide metal cylinder with and without the cloak are measured and compared. Despite more than doubling the overall size of the scattering object, the cloak (which is 117 mm wide) reduces the total SCS of the cylinder by as much as 24%. The SCS of the cloaked cylinder was found to be below that of the uncloaked cylinder from 9.91GHz to 10.14GHz, a frequency range of 230MHz and a 2.3% bandwidth. These results are compared with an analytic model of a perfectly homogenized realization of the cloaking material that was used.

11:30 Probing surface-plasmon modes in noble metal nanoparticles using an electron beam V. Myroshnychenko, J. Nelayah, M. Kociak, O. Stéphan, C. Colliex, G. Adamo, K. MacDonald, N. I. Zheludev, J. Rodriguez-Fernandez, E. Carbo-Argibay, I. Pastoriza-Santos, J. Pérez-Juste, L. M. Liz-Marzan, and F. J. Garcia de Abajo

Abstract: The structure of surface-plasmon modes localized in gold nanoparticles is unveiled by electron energy-loss spectroscopy and cathodoluminescence performed in a scanning electron microscope. Spectral features and spatially-resolved maps of surface plasmon modes collected for nanoparticles are in excellent agreement with theoretical calculations performed by the boundary element method.

11:45 Capacity sensor for belt conveyor systems based on planar metamaterials Margarita Puentes Vargas, Martin Schüßler, Christian Damm, Andreas Penirschke, Rolf Jakoby

Abstract: A new capacitive sensor concept for the monitoring of belt conveyor systems has been developed using a metamaterial transmission line with two operation modes. When the line is used as a resonator the mean permittivity and velocity of material on the sensor can be determined. In the second operation mode the sensor is used as a transmission line and by measuring the broadband input impedance in the LH band a capacitive profile along the line can be evaluated by applying different methods such as time domain reflectometry, the perturbation method or network synthesis. The areas of application of these types of sensors are transportation of materials in conveyor belts for several industrial processes where the velocity and position of the Material under Test (MUT) are of interest.

12:00 Hybrid biosignal-based filters for metamaterials spectral analysis I. Sliesoraityte, E. E. Fedorov, R. Dubakiene, and V. Sliesoraitiene Abstract: In this report we will review our recent results on experimental development of hybrid biosignal-based filters used for metamaterials spectral analysis. We have simulated the signal spectrum and computed significant features. It is shown that hybrid biosignal-based filters may be effective in reducing the scattering from acoustic objects and might be applied for signals connected to various frequency bands and in different data domains spectral analysis.

12:15 New application to microstrip antennas with bianisotropic substrate H. C. C. Fernandes and M. P. Sousa Neto

Abstract: The effect of a bianisotropic substrate on the complex resonance frequency of a microstrip antenna with rectangular patch is presented in this work. The analysis is done using the concise Transverse Transmission Line (TTL) method, to obtain the electromagnetic fields in the Fourier transform domain (FTD). The results are compared with other methods showing the efficiency of the TTL method, and the use of the bianisotropic substrate for news applications.

10:45 – 12:00 Eugenie Salon

Special session 5C

Phononic crystals and Metamaterials

Organized by: Ihab El-Kady Chaired by: Roy Olsson

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10:45 Invited Fabrication of 2-D phononic crystals using focused Ion beams D. F. Goettler, R. H. Olsson III, I. El-Kady, and Z. C. Leseman

Abstract: A description of a novel fabrication process for 2-D phononic crystals (PhonCs) is given using a focused ion beam (FIB). Specifically, examples will be given where a focused ion beam was used to create 2-D phononic crystals with bandgaps larger than 10 GHz. PhonCs in this work consist of a Si matrix and W inclusions.

11:05 Invited Compact high-Q phononic crystal micro-mechanical resonators for wireless communications and sensing applications A. Adibi, S. Mohammadi, A. A. Eftekhar, A. Khelif

Abstract: In this presentation, we will use the PnBG of a PnC slab structure fabricated on silicon to obtain compact MM resonators that can efficiently confine different types of modes with quality factors of up to 10,000 in air at ~130MHz. Both resonant-tunneling and direct transduction using piezoelectric films are used to electrically interact with the resonators. Such performance is among the best performances obtained for piezoelectrically-excited MM resonators. Various resonator structures are designed, fabricated and tested to assess the trade offs involved in the characteristics of PnC slab resonators. Elementary devices based on PnC MM resonators are also designed and fabricated based on such highperformance MM resonators.

11:25 Invited Towards phoXonic crystals S. Benchabane, S. Sadat-Saleh, M.-P. Bernal, F. I. Baida and V. Laude

Abstract: The simultaneous existence of photonic and phononic band gaps opens up many possibilities for enhancing acousto-optical interactions at a common wavelength scale. In this paper, we will give a brief review of the current state of the art dedicated to these structures, before focusing on theoretical investigations of the band diagrams of such ‘phoxonic’ crystals. We will more particularly focus on air/lithium niobate crystals in view of designing integrated phoxonic devices relying on surface acoustic waves. A comparison with a silicon based solution, in particular with slab structures, will also be drawn.

11:45 Acoustic meta-materials in MEMS bar resonators X. Rottenberg, R. Jansen, C. Van Hoof and H.A.C. Tilmans

Abstract: This paper presents a meta-material-based design method for bar resonators with enhanced characteristics compared to those obtained with the typical bulk material implementation. We take advantage of the required release holes of MEMS processes to modify the local equivalent material properties (ρ, E and ν) of the bar. While the available bulk material is homogeneous, the bar consists of an equivalent non-homogeneous material that can for example be distributed by design in order to shrink the overall resonator size, enhance electromechanical transduction coefficients or reject spurious modes. Our paper compares two extraction methods for the equivalent material properties of a periodically hole-punched material: the steady-state mechanical simulation of a unit cell and its “phase delay” counterpart. We discuss their validity and practical use for the design of bar resonators.

10:45 – 12:55 The View

Special session 5D

Interesting phenomena and applications of metamaterials and plasmonics

Organized by: Sailing He Chaired by: Victor Fouad Hanna and Hamdy Elmikaty

10:45 Keynote talk Using metamaterials to create illusions C.T. Chan

Abstract: Metamaterials designed using transformation optics and the complementary media concepts can create optical illusions.

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11:15 Invited Field absorption, rotation and squeezing with electromagnetic metamaterials S. He

Abstract: We report some of our recent progress in perfect absorption, polarization rotation and field squeezing with electromagnetic metamaterials. Omni-directional, broadband and polarization-insensitive absorption of light is achieved in a thin metamaterial absorber. Both theoretical and experimental results on effective rotation of polarization through a thin bi-layered chiral structure will be presented, as well as some field squeezing phenomena.

11:35 Photorealistic depictions of Maxwell’s Fish Eye and other gradient index Metamaterials based objects A. J. Danner and N. Xiang

Abstract: Visually stunning photorealistically-rendered images and animations of several metamaterials-based devices in action will be presented. Such rendering is useful in assessing the ultimate device performance that may be achievable even with imperfect metamaterials, especially in invisibility cloaks.

11:50 Polarization-sensitive tip enhanced Raman scattering P. G. Gucciardi, F. Bonaccorso, M. Lopes, D. Barchiesi, R. Déturche, M. Lamy de la Chapelle, A. Merlen, J. – C. Valmalette, G. Picardi, A. Frigout, R. Ossikovski

Abstract: We report on the measurement of the degree of polarization of light scattered by metallic tips in Tip-Enhanced Raman Spectroscopy (TERS) experiments. Results show that the light depolarization induced by such probes can be used to selectively enhance polarized Raman modes in semiconductor crystals, such as Si (001) and GaAs (001). The spatial confinement of the depolarization field is studied and its dependence on the excitation wavelength and power are explored.

12:05 Metal-nanoparticle-mediated super-resolution in light-matter interaction L. M. Eng, Th. Härtling, R. Kullock, R. Schneider, S. Kehr, and S. Grafström

Abstract: Metallic nanoparticles (MNPs) provide the power of local field enhancement and optical focusing of electromagnetic waves far beyond the diffraction limit. Here we show how MNPs of various shapes and sizes can be tuned photochemically in order to provide a maximum signal-to-noise-ratio for specific applications.

12:20 Invited Numerical analysis of 2D tunable HIS on GaAs support L. Matekovits, M. Heimlich, and K. Esselle

Abstract: Numerical analysis of the dispersion characteristics of a 2D tunable periodic structure in microsptrip technology is presented. The high relative dielectric constant gallium-arsenide (GaAs) substrate hosts the embedded active FET switches, allowing dynamic changes in the propagation conditions of the electromagnetic wave. The position, aperture of band-gaps and hence the value of the effective dielectric constant can be controlled.

12:40 Low loss surface polaritons and quantum memory in meta-materials Ali A. Kamli, Sergey A. Moiseev, and Barry C. Sanders Abstract: Coherent control of light field was a subject of numerous investigations and considerable progress has been achieved in last decades. In this work we propose to control slow surface polariton (SP) fields in meta-materials using EIT technique by exploiting the enhancement of the interaction between the SP modes and three-level atomic media.


Special session 5E


Organized by: Ihab El-Kady Chaired by: Michael Sinclair

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12:00 Microstrip delay line implemented by complementary split ring resonators (CSRRs) S. Pasakawee, M. A. Abdalla and Z. Hu

Abstract: Novel microstrip delay lines based on Complementary Split Ring Resonators (CSRRs) is presented. The measured results reveal that the microstrip CSRRs can realize much longer delay in time as compared to conventional transmission lines for the same lengths. The much needed delay properties with compact size of the lines will lead to their application in phase array radar systems.

12:15 Nearly ideal polarization rotator of metamaterial composite Masanobu Iwanaga

Abstract: We show nearly ideal polarization rotators which rotate incident linear polarization by about 90 degrees irrespective of the directions of polarization. The effect is a manifestation of colossal chirality and bianisotropy in the polarization rotator. The rotators are composed of a pair of ultra-thin quarter wave plates of metamaterial, being bi-layered metamaterial composites with subwavelength thickness of 1/4 incident wavelength.

12:30 Performance improvement of patch-antenna by beam focusing using left handed metamaterial perfect lens composed of complementary split ring resonators Ehab K. I. Hamad and Adel A. A. Abdel-Raheem

Abstract: In this paper, the performance of a microstrip square patch antenna is improved by beam focusing using Left Handed Metamaterial (LHMTM) lens. The metamaterial (MTM) lens is composed of a 2-D Complementary Split Ring Resonators (CSRRs) periodic structure. The proposed antenna is constructed by a conventional square microstrip patch antenna, which is integrated with a CSRRs-based LHMTM lens.

12:45 – 14:15 Lunch


Plenary Session V

Chaired by: Nader Engheta and Yuri Kivshar

14:15 Keynote talk Nonlinear and adiabatic control of light by photonic crystals Masaya Notomi

Abstract: Recently, very high-Q wavelength-sized cavities have been realized by photonic crystals. I review the impacts of these nanocavities in terms of enhancement of optical nonlinearinteractions and novel adiabatic control of light.

14:45 Keynote talk EBG surfaces with vias, no-vias, connected and non-connected configurations: understanding the underlying physics Yahya Rahmat-Samii and Harish Rajagopalan

Abstract: Antenna designs with low profile configurations are extremely attractive in modern wireless communications and mobile devices. A recent book by Fan and Rahmat-Samii entitled, “Electromagnetic Band Gap Structures in Antenna Engineering,” provides an in-depth evaluations of the existing state-of-the-art in electromagnetic band-gap (EBG) structures. One of the important challenges in these designs is to decouple the effect of the nearby ground plane from the antenna itself. It is known that when an electric dipole antenna is placed closely parallel to perfect electric conductor (PEC) ground plane due to an almost reverse image current, the antenna performance is noticeably compromised. To circumvent this ground plane and antenna interaction, artificial complex ground planes such as electromagnetic band-gap structures have been proposed. The in-phase reflection and surface wave suppression have made EBG structures attractive in the antenna design community. This paper focuses on a systematic evolution from PEC to EBG and tries to highlight the underlying physical mechanisms involved. Full wave electromagnetic simulators based on advanced numerical methods are used to characterize the unique features of EBG surfaces with vias, no-vias, connected and non-connected structures. These EBG structures consist of patches connected to the PEC ground plane through vias to form the so-called mushroom EBG, connected structure, UCEBG, and

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the non-connected, Hilbert EBG. These structures are characterized based on their reflection phase, dispersion diagrams and band-gaps. Comparative studies among these various structures are performed to demonstrate some of their unique features, including bandwidth properties, polarization characteristics and angular responses.

15:15 Keynote talk Realizability of metamaterials with prescribed electric permittivity and magnetic permeability tensors F. Guevara Vasquez, G. W. Milton, and D. Onofrei

Abstract: Transformation optics assumes that there exist materials with ε = μ. But is there any basis for this assumption? We show that any pair of real symmetric tensors ε and μ can be realized as the effective electric permittivity and effective magnetic permeability of a metamaterial at a given fixed frequency. The construction starts with two extremely low loss metamaterials, with arbitarily small microstructure, whose existance is ensured by the work of Bouchitte and Bourel and Bouchitte and Schweizer, one having at the given frequency a permittivity tensor with exactly one negative eigenvalue, and a positive permeability tensor, and the other having a positive permittivity tensor, and a permeability tensor having exactly one negative eigenvalue. To achieve the desired effective properties these materials are laminated together in a hierarchical multiple rank laminate structure, with widely separated length scales, and varying directions of lamination, but with the largest length scale still much shorter than the wavelengths and attenuation lengths in the macroscopic effective medium.

15:45 – 16:15 Coffee break

16:15 – 18:35 Amneris

Session 6A


Chaired by: Le-Wei Li and Graeme Milton

16:15 Keynote talk Magnetism from dielectric rings: a new view on dielectric metamaterials R. Marques, L. Jelinek

Abstract: It is shown that arti cial magnetism with relatively large frequency bandwidth can be obtained from periodic arrangements of dielectric rings. Combined with dielectric rods or with natural plasma-like media, dielectric rings can provide 3D isotropic left-handed metamaterials, being an advantageous alternative to conventional designs.

16:45 Invited Multipole approach in electrodynamics of metamaterials A. Chipouline, J. Petschulat, C. Menzel, C. Rockstuhl, A. Tuennermann, F. Lederer, and T. Pertsch

Abstract: In this work we use the multipole expansion approach in order to describe analytically linear and nonlinear optical properties of metamaterials. We show that especially the consideration of electric quadrupole multipoles (not only the magnetic dipole one) is required by basic principles and provides the possibility to adequately analyse an effective magnetic material response. The dispersion relation of a single metamaterial layer and 3D infinitely expanded bulk metamaterials are derived.

17:05 Elastic waves in metamaterials R. S. Popov, I. V. Lisenkov and S. A. Nikitov

Abstract: Propagation of elastic waves in quasi-isotropic metamaterials is considered. Solid and fluid host materials are analysed. Dispersion of effective stiffness and density is calculated. Frequency domains with negative negative constutive parametars are estimated. Dispersion for the surface acoustic wave at the interface between metamaterial and “normal” matrial is calculated. Formulae for Doppler Effect in fluid metamatrial are obtained and calculated.

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17:20 Rigorous surface polarizability models for oblique incidence on metamaterial mono-layers A. I. Dimitriadis, D. L. Sounas, N. V. Kantartzis, and T. D. Tsiboukis

Abstract: A robust method for retrieving the effective polarizability densities of various types of metamaterial mono-layers is developed in this paper. Results are compared with those acquired from other, well-established retrieval algorithms, proving the validity of the novel approach.

17:35 Causality, negative refraction and coordinate-free methods A. Favaro, M.W. McCall and P. Kinsler

Abstract: We propose a coordinate-free criterion for negative phase velocity propagation (NPVP). Very minimal assumptions are taken: the medium is allowed shear in a flow, even when the optical response is not local/instantaneous. Furthermore, our NPVP condition reveals that, while dispersionless moving media can reproduce double-negative parameters, non-causal effects must also arise.

17:50 Terahertz, double-negative metamaterial from arrays of TiO2 spheres and other materials S. Lannebère, V. Vigneras, and A. Aradian

Abstract: We study the possibility of obtaining a double-negative metamaterial in the terahertz range based on Mie resonances of spherical particles made of high-permittivity materials. Several materials are reviewed, among which titania (TiO2) and lithium tantalate (LiTaO3) appear as best candidates. With an emphasis on TiO2 materials, we calculate particle sizes for various bands of negativity, and we include lattice and polydispersity effects. We conclude that such metamaterials may be realizable by chemical means.

18:05 Obtaining effective metamaterial parameters through modal analysis Jeffery Boksiner

Abstract: We develop analytic expressions and corresponding tractable approximations for impedance and dispersion relations for electromagnetic metamaterials. The approximations allow us to extend the effective medium theory to a wider frequency range.

18:20 Characteristics of multilayer slab waveguide structure with a double negativity material M. M. Shabat, S. A. Taya, and M. M. Abadla

Abstract: In this article, we investigate analytically the propagation of electromagnetic waves in a multilayer structure. A lossless double negative slab is embedded between a semi-infinite substrate and a thin film as a guiding layer. The film is covered with a semi-infinite cladding. After examining the electric and magnetic fields using Helmholtz equation in the four layers, we study the wave penetration depth in the cladding and the substrate. The power in different layers is also derived. The effect of the doubly negative material parameters on the propagation characteristics has been examined. The variation of the effective index of the structure with different parameters of the layers is studied extensively. A comparison of the structure under consideration with the conventional right handed four-layer waveguide structure is also shown.

16:15 – 17:20 Radames

Session 6B


Chaired by: Masaya Notomi and Ibrahim Salem

16:15 Invited Photonic Tamm structures utilizing Au sponges: fabrication and optical responses K. Kawasaki, A. V. Baryshev, T. Goto, and M. Inoue

Abstract: Mesoporous gold sponges were fabricated on top of 1D photonic crystals by co-sputtering AuAl2 alloy films followed by removing Al. Optical response of the PC– Au sponge structure was found to be sensitive to refractive indices of analytes surrounding the Au sponge.

16:35 Folded bands in metamaterial photonic crystals P.Y. Chen, A.A. Asatryan, C.G. Poulton, M.J. Steel, R.C. McPhedran, L.C. Botten and

C.M. de Sterke

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Abstract: We present band structure calculations of photonic crystals composed of both positive and negative refractive index materials. These structures exhibit bands that feature both positive and negative group velocities, producing folded bands that do not span the entire Brillouin zone. We derive a mathematical condition for the existence of folded bands from an energy flux relation, which shows that modal group velocity changes sign as field intensity transitions from the positive to the negative group index material. These band topologies are shown to persist when loss is added to the simulation.

16:50 Non-diffractive wave beams of sub-wavelength width in a medium with externally controlled anisotropy A. A. Serga, T. Schneider, A. V. Chumak, C. W. Sandweg, S. Trudel, S. Wolff, M. P. Kostylev, V. S. Tiberkevich, A. N. Slavin, and B. Hillebrands

Abstract: It is shown that in a medium with externally induced anisotropy a wave source of a sufficiently small (sub-wavelength) size can excite practically non-diffractive caustic wave beams with stable sub-wavelength transverse aperture, and the direction of propagation of these beams can be controlled by changing the direction of the anisotropy axis.

17:05 Control of coupled photonic crystal cavities via nano fluidic tuning S. Vignolini, F. Intonti, F. Riboli, D. S.Wiersma, L. Balet, L. H. Li, M. Francardi, A. Gerardino, A. Fiore, M. Gurioli.

Abstract: Resonant coupling between individual photonic crystal micro-cavities is modified by tuning each single resonator via local in ltration of water in correspondence of the photonic crystal pores. The use of a nano-fluidic technique allows selectively modify the detuning between the cavity in a complete reversible way.

16:15 – 18:10 Ramfis

Special session 6A

Design methodology and fabrication concepts for 3D IR to visible Metamaterials

Organized by: Ihab El-Kady Chaired by: Frederick McCormick

16:15 Invited Disorder in optical metamaterial made of nanospiral of silver G.Guida, B. Gallas, R. Abdeddaim, A. Priou, J. Rivory, K. Robbioe

Abstract: In this work we compare the optical response of nanospiral made of silver in the terahertz range for 2D periodic arrays.

16:35 Invited Design, Simulation and characterization of THz metamaterials W. J. Padilla

Abstract: We describe the conceptual and computational design, and characterization of metamaterials operating at terahertz frequencies. Various metamaterial geometries are selected based upon their point group symmetries and simulated in finite difference time domain electromagnetic wave solvers. Structures are fabricated with standard optical lithographic techniques and characterized in both frequency and time domain THz spectrometers.

16:55 Invited 3-D Metamaterial fabrication using membrane projection lithography D. Bruce Burckel, Greg A. Ten Eyck, Joel R. Wendt, Igal Brener, A. Rob Ellis, Brandon S. Passmore, Eric A. Shaner, and Michael B. Sinclair

Abstract: We present a scalable fabrication approach, membrane projection lithography (MPL), capable of generating metamaterial structures such as split ring resonators (SRR) on a micron/sub-micron size scale with out-of-plane current flow. The basic premise behind MPL is to suspend a membrane containing the desired resonator pattern over a cavity and then use directional evaporation to deposit instances of the resonator pattern on the interior faces of the cavity. The

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process can be repeated in a layer-by-layer fashion to create 3D volumes of material. The cavity geometry, the resonator structure and the lattice morphology all impact the electromagnetic behavior of an artificially structured dielectric. Using MPL, all three components can be engineered to provide useful electromagnetic behavior.

17:15 Invited Metamaterials: Some challenges ahead E.N. Economou

Abstract: After a brief review of the main points regarding photonic and phononic crystals and left – handed metamaterials (LHMs), I will focus on some specific topics. Among them I will include some recent work of our group regarding the role of LHMs in the Casimir interaction between two conducting surfaces. In particular it will be demonstrated that chiral metamaterials could exhibit reduced attraction, with the possibility of even producing repulsion for short distances, if the chirality is strong enough. This is an exciting possibility because, if achieved, it will stabilize the system of the two plates at a finite distance apart with obvious applications in nanomotors. Several designs aiming at reaching the critical chirality will be presented.

17:35 Invited Designing optical negative index and negative permeability metamaterials M. Kafesaki, R. Penciu, T. Koschny, E. Economou and C. Soukoulis

Abstract: In this talk we analyze the behavior of artificial magnetic metamaterials and negative index metamaterials in the optical regime, and the main limiting factors in the performance of such metamaterials. Based on this analysis, we propose simple design rules for the optimization of optical metamaterials, especially of structures based on the slab-pair design.

17:55 Scalable cylindrical metallodielectric metamaterials N. Gibbons, J. J. Baumberg, F. M. Huang, C. L. Bower, M. Kolle, and U. Steiner

Abstract: We report a new approach for scalable manufacturing of MetaMaterials fabricated through floating and rolling-up flexible metallodielectric stacks. This process offers an efficient fabrication route for multi-layer structures, improving the uniformity and enabling unusual structural configurations. Probing example metallic Bragg structures spectroscopically shows good agreement with transfer matrix simulations, demonstrating strong reflection and transmission resonances within the visible. These resonances arise from the Bragg nature of the multi-layer: at specific resonant frequencies the optical field of the light tunnels through the metal with a hundred-folds reduction in loss. Such structures have unusual nonlinear optical properties and many applications in sub-wavelength focusing and metamaterial activity.

16:15 – 18:35 Amonasro

Special session 6B

Coherent phenomena in plasmonics and Metamaterials

Organized by: Stefan Maier Chaired by: Stefan Maier

16:15 Invited Coherent processes in 3D optical metamaterials and metallic photonic crystals H. Giessen, N. Liu, T. Utikal, M. Geiselmann, and M. Lippitz

Abstract: We investigate coherent processes in metamaterials and metallic photonic crystals. On the one hand, we analyze EIT-like processes in stacked as well as in planar metamaterials, leading to narrow resonances within the plasmon absorption. On the other hand, we demonstrate coherent control of particle-plasmon polaritons in metallic photonic crystals on a femtosecond timescale.

16:35 Invited Fano resonances and collective effects in metamaterials N. Papasimakis, V. A. Fedotov, and N. I. Zheludev

Abstract: We review recent progress on the control of inter-meta-molecule interactions and collective effects in metamaterials.

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16:55 Invited Nano-antennas and single molecules: control at the nanoscale Daan Brinks, Marta Castro Lopez, Alberto Gonzalez Curto, Tim Hugo Taminiau, Niek F van Hulst

Abstract: We are focusing on full spatio-temporal control of coupled antenna-emitter systems at the nanoscale. Here recent advantages in phase control of femtosecond pulses near nano antennas will be discussed, as well as coupling between antennas and single photon emitters.

17:15 Invited Energy flow and coherent phenomena in plasmonic materials versus dissipation Boris Luk`yanchuk, Chong Tow Chong and Shi Luping

Abstract: Development of modern materials, including nanoclusters, cluster assembled materials and metamaterials is among the actual challenges for the development of future nanotechnologies. Here we discuss the peculiarities of far-field and near-field light scattering by plasmonic nanoparticles, and possible applications of weakly dissipating materials. Over the last few years many peculiarities of light scattering have been found for nanoparticles in the regime of plasmon resonances. Optical excitation of localized plasmons is accompanied by inverse process - transformation of localized resonant plasmons into scattered light. When radiative damping prevails over the dissipative damping, the effects of anomalous light scattering result in sharp giant optical resonances and complicated near-field structure of the Poynting vector field, non-Rayleigh scattering of plasmon nanoparticles, Fano-resonance, etc. Here we present peculiarities of far-field and near-field light scattering by plasmonic nanoparticles with weak dissipation and anisotropy.

17:35 Amorphous plasmonic metamaterial – coherent neighbor interaction J. Dorfmüller, W. Khunsin, R. Vogelgesang, C. Rockstuhl, A. Dmitriev, F. Lederer, and K. Kern

Abstract: We investigate nearest-neighbor interactions in amorphous plasmonic metamaterial. The analysis of large area near-field images, containing thousands of randomly distributed gold nanodiscs, allows us to extract statistical properties of neighbor interactions such as the variations of the local dipole strength and orientation as a function of nearest-neighbor environment.

17:50 Plasmonic Dicke effect T. V. Shahbazyan and V. N. Pustovit

Abstract: We study radiation of an ensemble of dipoles near a metal nanostructure supporting surface plasmon. The coupling of dipoles via plasmon in a nanostructure leads to the formation of superradiant states. The cooperative emission is dominated by three superradiant states and it survives non-radiative losses in metal as well as dipole-dipole interactions.

18:05 Experimental study of coherent magnetic plasmon modes in a one-dimensional meta-chain H. Liu, C. Zhu, S. M. Zhu, T. Li, Z. G. Dong and S. N. Zhu

Abstract: In this work, a one-dimensional meta-chain is proposed, based on a novel design of magnetic resonator, slit-hole resonator (SHR). Due to strong exchange current interactions between SHRs, coherent magnetic plasmon modes are obtained. Based on a general Lagrangian formulism, the dispersion properties of these modes were obtained. A sample of meta-chain was fabricated with focused ion beam. In the experiments, the extraordinary transmission peak was observed in infra-red range, which is induced by the excited magnetic plasmons modes.

18:20 High-order harmonic generation by plasmon field enhancement J. Herrmann, A. Husakou and S. J. Im

Abstract: We present a theoretical study of high-order harmonic generation by femtosecond laser pulses from oscillators without amplifier by using the large plasmon field enhancement near metallic nanostructures such as bowtie-shaped metallic elements or metal tips. Our results are consistent with experimental observations using bowtie elements and predict the generation of high harmonics with intensities of 300 GW/cm2 in argon using tip-enhanced HHG.

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16:15 – 18:05 The View

Special session 6C


Organized by: Ihab El-Kady Chaired by: Ihab El-Kady

16:15 Invited Spontaneous emission control in the visible using TiO2 3D logpile photonic crystal structures J. Fischer, G. Subramania, Y. J. Lee, Q. Li, G.T. Wang, and D. D. Koleske

Abstract: Visible-based 3D logpile photonic crystal structures have been fabricated and quantum dot emitters have been incorporated to measure changes to the spontaneous emission. Luminescence data, both time-integrated and time-resolved, will be discussed for samples fabricated from GaN and TiO2.

16:35 Invited Strong purcell enhancement of emission from close-packed colloidal quantum-dots in a photonic crystal microcavity T. S. Luk, W. W. Chow, S. Xiong, B. G. Farfan, I. El-Kady, X. Miao, P. J. Resnick, M. F. Su, G. Subramania, M. R. Taha, C. J. Brinker

Abstract: Integrating colloidal quantum dots with high Q photonic crystal microcavities has been a challenging problem. Here we present a method using a monolayer of closed-packed quantum dot film to achieve a Purcell factor greater than a hundred from an air-bridged two dimensional silicon photonic crystal microcavity.

16:55 Invited 3D Photonic crystals with embedded dielectric, metallic, and emissive features for controlling the generation and harvesting of photons P. V. Braun

Abstract: Over the past decade, the sophistication of self and directed-assembly approaches for functional composite structures has increased dramatically, however, application of such structures in real-world systems has remained largely elusive, in part because such structures almost always contain finite concentrations of undesirable defects, and are constructed from optically less interesting materials. Here we describe coupled holographic assembly and unique materials chemistry approaches to create 3D photonic crystals containing embedded dielectric, metallic, and emissive features.

17:15 Invited Design and fabrication of a midinfrared photonic crystal defect cavity in indium antimonide M. J. Cryan, J. R. Pugh , Y. L. D. Ho, P. J. Heard, G. R. Nash, T. Ashley and J. G. Rarity

Abstract: This paper discusses the design and optimisation of a two-dimensional photonic crystal membrane defect cavity for use as a laser in gas sensing and communications applications in the 3-4μm wavelength range. The design is based on a modified L3 cavity in an aluminium-indium-gallium-antimonide membrane structure which contains two strained quantum wells. A detailed study of Q factor for different thicknesses and hole positions is carried out and peak emission is predicted at a wavelength of 3.372μm with a Q factor of 26233 for an optimised membrane thickness of 1000nm. A focused ion beam procedure is described for creating the membrane directly in a Fabry-Perot laser structure. A membrane is fabricated and the photonic crystal pattern is etched into the membrane.

17:35 Pulse propagation in silicon photonic crystal slab waveguides N. C. Panoiu, J. F. McMillan, and C. W. Wong

Abstract: We present a theoretical model that describes the pulse propagation in silicon photonic crystal waveguides. Our theoretical analysis shows that in the slow-light regime the linear effects depend on the group-velocity as vg-1 whereas the strength of optical nonlinearities scales as vg-2.

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17:50 Enhanced quantum dot emission in a unidirectional photonic crystal waveguide Samuel J. Dewhurst, Daniel Granados, David J. P. Ellis, Anthony J. Bennett, Raj B. Patel,

Ian Farrer, David Anderson, Geb A. C. Jones, David A. Ritchie, Andrew J. Shields

Abstract: A recent theoretical proposal showed that by coupling QDs to unidirectional photonic crystal waveguides (PCWGs), it is possible to strongly enhance the spontaneous emission rate and to achieve large extraction efficiencies in-plane. Unidirectional PCWGs could therefore become useful components in future photonic integrated circuits. We have designed, fabricated and tested several unidirectional PCWGs. The talk will detail experiments showing the operation of the device. We have measured a Purcell enhancement of the spontaneous emission, in-plane, of 2.7.


Special session 6D

Interesting phenomena and applications of metamaterials and plasmonic

Organized by: Sailing He Chaired by: Tomasz Szoplik and Shanhui Fan

16:15 Anomalous reflection in metallic structures with subwavelength grooves: a circuit theory model F. Medina, F. Mesa, and D. C. Skigin

Abstract: An equivalent-circuit approach is proposed to account for the most relevant details of the behavior of metallic dual-period structures comprising several grooves per period, such as Fabry-Pérot resonances and reflection peaks. The proposed equivalent-circuit model, based on well established concepts of waveguide and circuit theory, provides a simple and accurate description of the phenomenon that is appropriate for educational purposes as well as for the design of potential devices based on the behavior of the structures under study.

16:30 Point sources for exciting surface plasmons in planar surfaces: inhomogeneous fields for broadening the wave vector spectrum J. A. Gaspar-Armenta, L. A. Mayoral-Astorga and F. Ramos-Mendieta

Abstract: We have found theoretically that surface plasmons can be excited by light that is incident directly from vacuum on a metallic slab. Additional structure on the planar surface is not required if the source of light guarantees inhomogeneous harmonic fields along the surface. FDTD calculations show the plasmon excitation in a silver film by a point source of cylindrical symmetry placed at a distance d < � from the surface. The availability of wave vectors associated to evanescent waves as function of the field inhomogeneity is confirmed by Fourier analysis.

16:45 Keynote talk Plasmonic photo-catalytic chemical reactor Hong Yi Chung, Kuo Pin Chiu, Hung Ji Huang, Yuan Hsing Fu, Chun Da Shue, Nae Lih Wu, Chi Sheng Wu, Din Ping Tsai

Abstract: The electromagnetic interactions of various plasmonic nanostructures for the photo-catalytic chemical reactors are studied. Results of computation and simulation are used to design the contact area of the photo-catalytic reactors. Novel nano-fabrication techniques are developed to implement large surface area of plasmonic nanostructures for photo-catalytic reactors. Measurement and analysis of the photo-catalytic process happened in the newly designed photo-chemical reactors clearly demonstrate better efficiency of some photo-catalytic chemical process such as the decomposition of the Methyl Orange to carbon dioxide and water.

17:15 Surface-enhanced Raman scattering of gold nanostructures: role of dipolar and multipolar localized surface plasmons B. Frémaux, H. Shen, O. Perron, N. Guillot, L. Billot, T. Toury, E. Rinnert, M. Lamy de la Chapelle

Abstract: We have studied the Surface-Enhanced Raman Scattering (SERS) of shape controlled metallic nanparticles: nanocylinder and nanowires, designed through electron beam lithography and lift off

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techniques. We have notably studied the influence of localized surface plasmon resonance (LSPR) on the efficiency of SERS. We will demonstrate that the nanowires have specific enhancement behaviour and can actually act as nano-antenna.

17:30 Strongly polarized emission in Surface Enhanced Raman Scattering of randomly distributed molecules on gold nanowires B. Fazio, P. G. Gucciardi, F. Bonaccorso, C. Vasi, M. Allegrini, A. Toma, D. Chiappe, F. Buatier de Mongeot

Abstract: In this paper we experimentally show that the Surface Enhanced Raman Scattering (SERS) of methilene blue molecules randomly oriented on near-field coupled gold nanowires is polarized parallel to the inter-wire nanocavity axis.

17:45 A novel subwavelength plasmon polariton optical filter based on tilted coupled structures L. O. Diniz, E. Marega, Jr, and B.-H.V. Borg

Abstract: We have numerically investigated the wavelength response of a subwavelength metal-insulator-metal waveguide presenting tilted coupled structures transversely arranged in the midpoint between the input and output ports. The cavity-like response of this device has shown that this concept can be very attractive for optical filter design for telecom applications.

18:00 Polarization aspects of localized optical spots beyond the diffraction limit E. Ogut and K. Sendur

Abstract: Linearly, circularly, and elliptically polarized optical spots well beyond the diffraction limit are achieved using a plasmonic nano-antenna. A novel plasmonic nano-antenna is illuminated with diffractionlimited linearly polarized radiation. Plasmonic resonances of perpendicular and longitudital components of the nano-antenna are tuned to obtain optical spots at the nanoscale with various polarizations.

18:15 Subwavelength focusing from far field F. Lemoult, G. Lerosey, and M. Fink

Abstract: The problem of imaging, or its reciprocal counterpart focusing, lies in waves physics. The imaging resolution of a given device, or equivalently the tightest focal spot obtainable, are related to the numerical aperture of the observing instrument by the so called Rayleigh criterion. At the laboratory, researches on Time Reversal, which uses broadband waves, have demonstrated that it is possible to overcome this criterion.

19:00 – 22:00 Conference banquet: Show cruise on the Nile River

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Thursday 25 February 2010 09:00 – 18:00 Full day excursion: Egyptian Museum, lunch, Pyramids and Sphynx

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