Adaptive pulse shaping
46
description
Adaptive pulse shaping. Femtosecond pulse shaping. Evolutionary algorithm. Applications of adaptive pulse shaping. high harmonic generation. Objective: Control HHG. (I.). atoms/molecules/ clusters/droplets. shaped. (II.). atoms. soft x-ray detector. fs-laser pulse. Three-step model. - PowerPoint PPT Presentation
Transcript of Adaptive pulse shaping
Adaptive pulse shaping
Femtosecond pulse shaping
Evolutionary algorithm
Applications of adaptive pulse shaping
high harmonic generation
shaped
(II.)
Objective: Control HHG
soft x-raydetector
atoms
fs-laser pulse
atoms/molecules/clusters/droplets
(I.)
Three-step model
P. Corkum, Phys. Rev. Lett. 71, 1994 (1993)
Harmonic generation geometry
A. Rundquist et al. Science 280, 1412 (1998)
XUV-detector
Atomic/molecular jet
fs-laser pulse
capillary
Experimental setup
Harmonic enhancement
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efficiency: 106 photons/pulse in a single harmonic!
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fittest pulse shape
average fitness
unshaped pulse / reference signal
green2
red
fitness:2725
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selective enhancement of HHG
A. Rundquist et al. Science 280, 1412 (1998)
vacuumpropagation
material dispersion
plasma dispersion
waveguide dispersion
simulation
Phase-matching
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Selective Control of HHG
High-harmonic generation
A. Rundquist et al. Science 280, 1412 (1998)
XUV-detector
Atomic/molecular jet
shaped fs-laser pulse
capillary
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generation geometry
Fitness: F = A / B
jet vs. capillary
control not only governed by the single atom response
A BB B BA
Summary
Selective Enhancement
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Comprehensive Control
Attosecond Quantum Control
Control beyond theatomic dipole phase
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