The European Physical Journal D - Atomic, Molecular, Optical and Plasma Physics

, Volume 40, Issue 1, pp 125–132

Longitudinal coherence and spectral profile of a nickel-like silver transient soft X-ray laser

Authors

    • LIXAM, Université Paris Sud
  • A. Klisnick
    • LIXAM, Université Paris Sud
  • D. Joyeux
    • LCFIO, Institut d'Optique
  • D. Benredjem
    • LIXAM, Université Paris Sud
  • K. Cassou
    • LIXAM, Université Paris Sud
  • S. Kazamias
    • LIXAM, Université Paris Sud
  • D. Ros
    • LIXAM, Université Paris Sud
  • D. Phalippou
    • LCFIO, Institut d'Optique
  • G. Jamelot
    • LIXAM, Université Paris Sud
  • C. Möller
    • LIXAM, Université Paris Sud
Plasma Physics

DOI: 10.1140/epjd/e2006-00154-7

Cite this article as:
Guilbaud, O., Klisnick, A., Joyeux, D. et al. Eur. Phys. J. D (2006) 40: 125. doi:10.1140/epjd/e2006-00154-7

Abstract.

The spectral width of a Ni-like silver transient soft X-ray laser (4d-4p λ= 13.9 nm) was experimentally inferred from the measurement of its temporal coherence, performed with a novel wavefront division interferometer. The measured coherence time of 3 ps corresponds to a spectral linewidth of 0.7 mÅ which is narrow. We compare this experimental result to numerical simulations of the amplified line profile, performed along two different approaches. Both calculations predict a spectral linewidth that is about 3 times larger than the experimental value. We discuss several effects that might explain this discrepancy. We show that, due to the short duration of the X-ray laser pulse, the assumption of a stationary electromagnetic field used in both the experimental analysis and in the calculations need to be reconsidered.

PACS.

42.55.Vc X- and gamma-ray lasers52.50.Jm Plasma production and heating by laser beams (laser-foil, laser-cluster, etc.)32.30.Rj X-ray spectra

Copyright information

© EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2006