Berlin 2014 – wissenschaftliches Programm
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A: Fachverband Atomphysik
A 27: Poster: Photoionization
A 27.6: Poster
Dienstag, 18. März 2014, 16:30–18:30, Spree-Palais
Non-dipole effects in multiphoton ionization of hydrogen atom in short superintense laser fields — •Eric O. Jobunga1,2 and Alejandro Saenz1 — 1AG Moderne Optik, Institut für Physik, Humboldt-Universität zu Berlin, Newtonstr. 15, D-12489 Berlin, Germany — 2Department of Mathematics and Physics , Technical University of Mombasa, P. O. Box 90420-80100, Mombasa, Kenya
The development of novel light sources has enabled the realization of high-precision experiments investigating various non-linear processes in the dynamics of atomic, molecular, and ionic systems interacting with high intense laser pulses. At high intensities or short wavelengths, the analysis of these experiments would definitely require a reliable non-perturbative solution of the time-dependent Schrödinger or Dirac equation. These solutions should consider both the temporal and the spatial intensity variations of the laser pulse.We have solved the non-relativistic time dependent Schrödinger equation for a ground state hydrogen atom interacting with short intense spatially and temporally resolved laser fields corresponding to the multiphoton ATI regime for a monochromatic source with λ = 800 nm. We shall analyse the effects of the A2 term and the corresponding orders of the multipolar expansion of the transiton matrix.