Laser-cluster interaction: x-ray production by short laser pulses
Atomic and Molecular Clusters
2007-05-23 v1
Abstract
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.
Cite
@article{arxiv.physics/0506215,
title = {Laser-cluster interaction: x-ray production by short laser pulses},
author = {C. Deiss and N. Rohringer and E. Lamour and C. Prigent and J. -P. Rozet and D. Vernhet and J. Burgdorfer},
journal= {arXiv preprint arXiv:physics/0506215},
year = {2007}
}
Comments
5 pages,4 figures, submitted to Phys. Rev. Lett