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

O. Boyko, C. Valentin, B. Mercier, Ch. Coquelet, V. Pascal, E. Papalazarou, G. Rey, and Ph. Balcou
Phys. Rev. A 76, 063811 – Published 14 December 2007

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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  • Received 18 July 2007

DOI:https://doi.org/10.1103/PhysRevA.76.063811

©2007 American Physical Society

Authors & Affiliations

O. Boyko1,2, C. Valentin1, B. Mercier1, Ch. Coquelet1, V. Pascal1, E. Papalazarou1, G. Rey1, and Ph. Balcou1,3

  • 1Laboratoire d’Optique Applique, ENSTA, Ecole Polytechnique, CNRS, F-91761 Palaiseau, France
  • 2Laboratoire de Photonique et Nanostructures, CNRS UPR20, Route de Nozay, 91460 Marcoussis, France
  • 3Centre Lasers Intenses et Applications, Universit de Bordeaux 1, CNRS, CEA, 351 Cours de la libration, F-33405 Talence, France

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Vol. 76, Iss. 6 — December 2007

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