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Photonics and Semiconductor Nanophysics Paul Koenraad, Andrea Fiore, Erik Bakkers & Jaime...
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Transcript of Photonics and Semiconductor Nanophysics Paul Koenraad, Andrea Fiore, Erik Bakkers & Jaime...
![Page 1: Photonics and Semiconductor Nanophysics Paul Koenraad, Andrea Fiore, Erik Bakkers & Jaime Gomez-Rivas COBRA Inter-University Research Institute on Communication.](https://reader033.fdocuments.us/reader033/viewer/2022051417/5697bfd71a28abf838cae9fb/html5/thumbnails/1.jpg)
Photonics and Semiconductor Nanophysics
Paul Koenraad, Andrea Fiore, Erik Bakkers & Jaime Gomez-Rivas
M
aterials
D e v i c e s S y s t
e m
s
COBRA Inter-University Research Institute on Communication
Technology
![Page 2: Photonics and Semiconductor Nanophysics Paul Koenraad, Andrea Fiore, Erik Bakkers & Jaime Gomez-Rivas COBRA Inter-University Research Institute on Communication.](https://reader033.fdocuments.us/reader033/viewer/2022051417/5697bfd71a28abf838cae9fb/html5/thumbnails/2.jpg)
PSN group
![Page 3: Photonics and Semiconductor Nanophysics Paul Koenraad, Andrea Fiore, Erik Bakkers & Jaime Gomez-Rivas COBRA Inter-University Research Institute on Communication.](https://reader033.fdocuments.us/reader033/viewer/2022051417/5697bfd71a28abf838cae9fb/html5/thumbnails/3.jpg)
Where do you find semiconductors?
![Page 4: Photonics and Semiconductor Nanophysics Paul Koenraad, Andrea Fiore, Erik Bakkers & Jaime Gomez-Rivas COBRA Inter-University Research Institute on Communication.](https://reader033.fdocuments.us/reader033/viewer/2022051417/5697bfd71a28abf838cae9fb/html5/thumbnails/4.jpg)
Why are semiconductors important?
Most energy efficient illumination sources
Most efficient photovoltaic material
Basic material for electronics industry
Basic material for Information and Communication Technology (ICT)
![Page 5: Photonics and Semiconductor Nanophysics Paul Koenraad, Andrea Fiore, Erik Bakkers & Jaime Gomez-Rivas COBRA Inter-University Research Institute on Communication.](https://reader033.fdocuments.us/reader033/viewer/2022051417/5697bfd71a28abf838cae9fb/html5/thumbnails/5.jpg)
PSN RESEARCH
Goal: Achieve ultimate control in the structural, thermal, mechanical, electrical and photonic properties of semiconductor nanostructures
Physics of semiconductor nano-objects (3D/2D/1D/0D) Individual nanostructures and doping atoms Utilize quantum effects in nano-objects
Single photons/single electrons/single spins
![Page 6: Photonics and Semiconductor Nanophysics Paul Koenraad, Andrea Fiore, Erik Bakkers & Jaime Gomez-Rivas COBRA Inter-University Research Institute on Communication.](https://reader033.fdocuments.us/reader033/viewer/2022051417/5697bfd71a28abf838cae9fb/html5/thumbnails/6.jpg)
GaAs substrate
AlAsGaAs
Be doped AlAs
GaAs
Si doped AlAsGaAs
AlAs
How do we make semiconductors
Nanometer sized in all 3 directions and controlled incorporation of doping atoms
![Page 7: Photonics and Semiconductor Nanophysics Paul Koenraad, Andrea Fiore, Erik Bakkers & Jaime Gomez-Rivas COBRA Inter-University Research Institute on Communication.](https://reader033.fdocuments.us/reader033/viewer/2022051417/5697bfd71a28abf838cae9fb/html5/thumbnails/7.jpg)
Growth Research
500 nm * 500 nm
Self-assembled InAs quantum dots on GaAs
Atomic Force Microscopy image
Different semiconductor materials:• IV: Si, Ge• III-V: GaAs, InP, etc.• II-VI: ZnO, CdSe, etc.
Semiconductor nanowires
![Page 8: Photonics and Semiconductor Nanophysics Paul Koenraad, Andrea Fiore, Erik Bakkers & Jaime Gomez-Rivas COBRA Inter-University Research Institute on Communication.](https://reader033.fdocuments.us/reader033/viewer/2022051417/5697bfd71a28abf838cae9fb/html5/thumbnails/8.jpg)
Characterization of NanostructuresScanning Tunneling Microscopy image
Atom Probe Tomography image
Indium atomsGallium atoms
![Page 9: Photonics and Semiconductor Nanophysics Paul Koenraad, Andrea Fiore, Erik Bakkers & Jaime Gomez-Rivas COBRA Inter-University Research Institute on Communication.](https://reader033.fdocuments.us/reader033/viewer/2022051417/5697bfd71a28abf838cae9fb/html5/thumbnails/9.jpg)
Characterization of semiconductors
0.5 1.0 1.5
0.0
0.1
0.2
0.3
0.4
0.5
Ext
inct
ion
Frequency (THz)
0 mJ /cm-2
0.7 mJ /cm-2
1.4 mJ /cm-2
2.8 mJ /cm-2
N <1015 cm-3
N 1018 cm-3
= 400 l nm
![Page 10: Photonics and Semiconductor Nanophysics Paul Koenraad, Andrea Fiore, Erik Bakkers & Jaime Gomez-Rivas COBRA Inter-University Research Institute on Communication.](https://reader033.fdocuments.us/reader033/viewer/2022051417/5697bfd71a28abf838cae9fb/html5/thumbnails/10.jpg)
Photonic devices: single-photons
Quantum dots emit single photons:
10 nm
Jin, ... Fiore, Nature Nano. 2014Pagliano, ..., Fiore, Nature Comm. 2014
• Applications: Quantum information processing• Fundamental science: How light is bornExample: Ultrafast control of spontaneous emission Nano-opto-electro-
mechanical systems
![Page 11: Photonics and Semiconductor Nanophysics Paul Koenraad, Andrea Fiore, Erik Bakkers & Jaime Gomez-Rivas COBRA Inter-University Research Institute on Communication.](https://reader033.fdocuments.us/reader033/viewer/2022051417/5697bfd71a28abf838cae9fb/html5/thumbnails/11.jpg)
Photonic devices: many photons
Plasmonic LEDs and lasers Nanowire solar cells
![Page 12: Photonics and Semiconductor Nanophysics Paul Koenraad, Andrea Fiore, Erik Bakkers & Jaime Gomez-Rivas COBRA Inter-University Research Institute on Communication.](https://reader033.fdocuments.us/reader033/viewer/2022051417/5697bfd71a28abf838cae9fb/html5/thumbnails/12.jpg)
Example internship projectJeroen Schouwenberg, 2012: Modeling and design of photonic crystal filters
PSN interns participate to real research projects
Milo Swinkels (Master internship 2014): Ultrafast control of cavity QED
Tommy Barten (Master internship 2014): Nanowire absorption
![Page 13: Photonics and Semiconductor Nanophysics Paul Koenraad, Andrea Fiore, Erik Bakkers & Jaime Gomez-Rivas COBRA Inter-University Research Institute on Communication.](https://reader033.fdocuments.us/reader033/viewer/2022051417/5697bfd71a28abf838cae9fb/html5/thumbnails/13.jpg)
What can you do?Nanowire Growth (Erik Bakkers)Nanowire Devices (Erik Bakkers)Characterization (Paul Koenraad)Single Impurities (Paul Koenraad)Optical spectroscopy (Paul Koenraad)Plasmonics (Jaime Gomez-Rivas)THz physics (Jaime Gomez-Rivas)Single Photons (Andrea Fiore)Quantum Optics (Andrea Fiore)Photonic Devices (Andrea Fiore)
Come and visit us, you are most welcome [email protected]