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Article Dans Une Revue Physical Review Letters Année : 2006

Laser-cluster interaction: x-ray production by short laser pulses

Résumé

We investigate the heating of the quasi-free electrons in large rare gas clusters (N exceeding 10^5 atoms) by short laser pulses at moderate intensities (I~10^{15} Wcm^{-2}). We identify elastic large-angle backscattering of electrons at ionic cores in the presence of a laser field as an efficient heating mechanism resembling the Fermi shuttle. Its efficiency as well as the effect of collective electron motion, electron-impact ionization and cluster charging, are studied employing a mean-field classical transport simulation. Results for the absolute x-ray yields are in surprisingly good quantitative agreement with recent experimental results.

Dates et versions

hal-00008072 , version 1 (19-08-2005)

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C. Deiss, N. Rohringer, Emily Lamour, Christophe Prigent, J. -P. Rozet, et al.. Laser-cluster interaction: x-ray production by short laser pulses. Physical Review Letters, 2006, 96, pp.013203. ⟨10.1103/PhysRevLett.96.013203⟩. ⟨hal-00008072⟩
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