Phase-Dependent Harmonic Emission with Ultrashort Laser Pulses

Armelle de Bohan, Philippe Antoine, Dejan B. Milošević, and Bernard Piraux
Phys. Rev. Lett. 81, 1837 – Published 31 August 1998
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Abstract

We consider harmonic generation by atoms exposed to an intense laser pulse of a few femtoseconds. Our results, obtained by solving numerically the corresponding three-dimensional time-dependent Schrödinger equation, demonstrate the strong sensitivity of the harmonic spectra to the phase of the laser. These results are explained in terms of both quantum and classical dynamics. We show that this phase sensitivity may be exploited in order to probe the laser phase for ultrashort pulses. Our discussion about this new method of diagnosis takes into account propagation effects.

  • Received 13 March 1998

DOI:https://doi.org/10.1103/PhysRevLett.81.1837

©1998 American Physical Society

Authors & Affiliations

Armelle de Bohan1, Philippe Antoine1,*, Dejan B. Milošević2, and Bernard Piraux1,†

  • 1Laboratoire de Physique Atomique et Moléculaire, Université Catholique de Louvain, Chemin du Cyclotron, 2 B-1348 Louvain-la-Neuve, Belgium
  • 2Department of Physics and Astronomy, The University of Nebraska, Lincoln, Nebraska 68588-0111

  • *Also at “Fonds national de la Recherche Scientifique de la Communauté Française de Belgique.”

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Vol. 81, Iss. 9 — 31 August 1998

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