LIGHT POLARIZATION EFFECTS IN LASER-ASSISTED (E, 2E) COLLISIONS - A STURMIAN APPROACH

TitleLIGHT POLARIZATION EFFECTS IN LASER-ASSISTED (E, 2E) COLLISIONS - A STURMIAN APPROACH
Publication TypeJournal Article
Year of Publication1991
Taieb, R, Veniard, V, Maquet, A, VUCIC, S, POTVLIEGE, RM
JournalJOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS
Volume24
Issue14
Pagination3229-3240
Date PublishedJUL 28
ISSN0953-4075
Keywordspaper
Abstract

We discuss the influence of the laser polarization on the angular distribution of the ejected electron in electron impact ionization of atomic hydrogen, in the presence of a strong laser field. To this end, we have used a lowest-order time-dependent perturbation approach and introduced a new computational scheme to evaluate the relevant second-order transition amplitudes. The calculation is performed by expanding the atomic wavefunctions (perturbed or not) on to a Sturmian basis, which allows us to exactly take into account the contribution of the continuous spectrum to the dressing of the atomic states. Our numerical results indicate that light polarization effects can lead to important modifications of the triply differential cross section for laser-assisted (e, 2e) processes.

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