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Non-perturbative approach to multiphoton ionisation of the hydrogen and helium atoms

Date

Authors

Ivanov, Igor

Kheifets, Anatoli

Publisher

Pergamon-Elsevier Ltd

Abstract

Laser light intensities, currently obtained in the laboratories, make it possible to observe many multi-photon phenomena in the interaction of light and matter (such as multi-photon ionisation or MPI process). Theoretical description of such phenomena necessitates the use of essentially non-perturbative framework. We present such an approach based on the recasting of the Schrodinger equation for the system atom+field into a set of coupled integral equations of the Lippmann-Schwinger type.

Keywords

Keywords: High intensity light; Hydrogen; Integral equations; Laser beams; Multiphoton processes; Perturbation techniques; Photoionization; Kramers-Henneberger Hamiltonian; Multi-photon ionization (MPI); Non-perturbative phenomena; Strong laser fields; Inert gases; Kramers-Henneberger Hamiltonian; Multi-photon ionisation; Non-perturbative phenomena; Strong laser fields

URI

http://hdl.handle.net/1885/17666

Collections

ANU Research Publications

Source

Radiation Physics and Chemistry

Type

Journal article

DOI

10.1016/j.radphyschem.2005.07.066

Restricted until

2037-12-31

Downloads

File

Description

01_Ivanov_Non-perturbative_approach_to_2006.pdf (112.64 KB)