Laser Physics

, Volume 20, Issue 3, pp 581–590

Numerical calculation of strong-field laser-atom interaction: An approach with perfect reflection-free radiation boundary conditions

Authors

    • Soft Condensed Matter, Research Centre JülichInstitute of Solid State Research
  • H.-J. Kull
    • Institute of Theoretical Physics ARWTH Aachen University
Strong Field and Attosecond Physics

DOI: 10.1134/S1054660X10050063

Cite this article as:
Heinen, M. & Kull, H. Laser Phys. (2010) 20: 581. doi:10.1134/S1054660X10050063

Abstract

The time-dependent, single-particle Schrödinger equation with a finite-range potential is solved numerically on a three-dimensional spherical domain. In order to correctly account for outgoing waves, perfect reflection-free radiation boundary conditions are used on the surface of a sphere. These are computationally most effective if the particle wavefunction is expanded in the set of spherical harmonics and computations are performed in the Kramers-Henneberger accelerated frame. The method allows one to solve the full ionization dynamics in intense laser fields within a small region of atomic dimensions.

Copyright information

© Pleiades Publishing, Ltd. 2010