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Seeding High Order Harmonic in a Transient X-Ray Laser Amplifier

  • I. R. Al’Miev
  • O. Larroche
  • A. Klisnick
  • C. Moller
  • D. Benredjem
  • S. Kazamias-Moucan
  • O. Zabaydullin
  • J. Dubau
Conference paper
Part of the Springer Proceedings in Physics book series (SPPHY, volume 115)

Summary

The seeding of high-order harmonic (HOH) radiation in a transient Xray laser amplifier was numerically investigated using the code COLAX. The code was recently modified to account (i) for the travelling-wave irradiation of a preformed plasma pumped in the transient regime, and (ii) for the injection of a HOH pulse at the X-ray laser wavelength, and at one boundary of the plasma amplifier. We show that the time-dependent description of the polarisation (TDP) leads to significantly different results in comparison to the widely used adiabatic description. Namely, with TDP, HOH produces a wake in the intensity distribution, which is not only amplified but lasts much longer than the HOH pulse. This could explain recent experimental observations in the spectral domain.

Keywords

Population Inversion Adiabatic Approximation Travel Wave Main Pulse High Harmonic Generation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer 2007

Authors and Affiliations

  • I. R. Al’Miev
    • 1
  • O. Larroche
    • 2
  • A. Klisnick
    • 1
  • C. Moller
    • 1
  • D. Benredjem
    • 1
  • S. Kazamias-Moucan
    • 1
  • O. Zabaydullin
    • 1
  • J. Dubau
    • 1
  1. 1.LIXAM, Laboratoire d’Interaction du rayonnement X Avec la MatiereUMR 8624, Bat. 350, Universite Paris-SudOrsay, CedexFrance
  2. 2.CEA-DIF, Boite postale 12F-91680 Bruyeres-le-ChatelFrance

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