Landau damping in thin films irradiated by a strong laser field
Abstract
The rate of linear collisionless damping (Landau damping) in a classical electron gas confined to a heated ionized thin film is calculated. The general expression for the imaginary part of the dielectric tensor in terms of the parameters of the single-particle self-consistent electron potential is obtained. For the case of a deep rectangular well, it is explicitly calculated as a function of the electron temperature in the two limiting cases of specular and diffuse reflection of the electrons from the boundary of the self-consistent potential. For realistic experimental parameters, the contribution of Landau damping to the heating of the electron subsystem is estimated. It is shown that for films with a thickness below about 100 nm and for moderate laser intensities it may be comparable with or even dominate over electron-ion collisions and inner ionization.
Keywords
Cite
@article{arxiv.physics/0409062,
title = {Landau damping in thin films irradiated by a strong laser field},
author = {D. F. Zaretsky and Ph. A. Korneev and S. V. Popruzhenko and W. Becker},
journal= {arXiv preprint arXiv:physics/0409062},
year = {2009}
}
Comments
15 pages, 2 figures