Semiclassical description of multiphoton processes
Atomic Physics
2009-11-06 v1 Optics
Abstract
We analyze strong field atomic dynamics semiclassically, based on a full time-dependent description with the Hermann-Kluk propagator. From the properties of the exact classical trajectories, in particular the accumulation of action in time, the prominent features of above threshold ionization (ATI) and higher harmonic generation (HHG) are proven to be interference phenomena. They are reproduced quantitatively in the semiclassical approximation. Moreover, the behavior of the action of the classical trajectories supports the so called strong field approximation which has been devised and postulated for strong field dynamics.
Cite
@article{arxiv.physics/0002038,
title = {Semiclassical description of multiphoton processes},
author = {Gerd van de Sand and Jan M Rost},
journal= {arXiv preprint arXiv:physics/0002038},
year = {2009}
}
Comments
10 pages, 11 figures