Systematic study of high-order harmonic optimal control by temporal pulse shaping of laser pulses

Olga Boyko 1, 2 C. Valentin 1 Brigitte Mercier 1 Ch. Coquelet 1 V. Pascal 1 Evaggelos Papalazarou 1 G. Rey 1 Philippe Balcou 1, 3
1 LOA - Laboratoire d'optique appliquée
2 LPN - Laboratoire de photonique et de nanostructures
3 CELIA - Centre d'Etudes Lasers Intenses et Applications
Abstract : We explore experimentally and numerically the physics underlying the optimization of high-order harmonic generation by intense laser pulses, whose temporal profile is tailored by a learning genetic algorithm. Based on a large set of optimization data obtained under different generation parameters, we show that the algorithm converges toward a class of very special profiles on the leading edge of the pulse. The behavior of the harmonic signal is then compared with theoretical simulations based on the time-dependent Schrödinger equation, allowing one to identify separately the role of microscopic and macroscopic phenomena in the temporal dynamics of high-harmonic generation and optimization.
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https://hal-polytechnique.archives-ouvertes.fr/hal-00515698
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Submitted on : Tuesday, September 7, 2010 - 6:16:16 PM
Last modification on : Monday, October 21, 2019 - 4:00:05 PM

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Olga Boyko, C. Valentin, Brigitte Mercier, Ch. Coquelet, V. Pascal, et al.. Systematic study of high-order harmonic optimal control by temporal pulse shaping of laser pulses. Physical Review A, American Physical Society, 2007, 76 (6), pp.063811. ⟨10.1103/PhysRevA.76.063811⟩. ⟨hal-00515698⟩

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