Free-free transitions in a bichromatic field of frequencies omega and 2 omega at moderate field intensities

Authors
Citation
A. Cionga et G. Zloh, Free-free transitions in a bichromatic field of frequencies omega and 2 omega at moderate field intensities, LASER PHYS, 9(1), 1999, pp. 69-80
Citations number
12
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Optics & Acoustics
Journal title
LASER PHYSICS
ISSN journal
1054660X → ACNP
Volume
9
Issue
1
Year of publication
1999
Pages
69 - 80
Database
ISI
SICI code
1054-660X(199901/02)9:1<69:FTIABF>2.0.ZU;2-8
Abstract
Free-free transitions in laser-assisted electron-hydrogen scattering in a b ichromatic field of frequencies omega and 2 omega are studied at moderate i ntensities for fast projectiles. A hybrid approach is used, in which the fi eld-projectile interaction is described exactly but the field-target one is described by second order perturbation theory; the projectile-target inter action is treated in the first Born approximation, The adopted description of the target enables a consistent study of the leading process to each of the considered sidebands. Numerical results are presented for the angular d istributions in a geometry and at frequencies for which the target dressing is important. The influence of the relative phase between the fields is in vestigated, too.