Eur. Phys. J. D 23, 333-336 (2003)
https://doi.org/10.1140/epjd/e2003-00097-5

Elliptic dichroism in hydrogen ionization by a coherent superposition of two harmonics

¹ Department of Chemistry, University of Bucharest, Bd. Regina Elisabeta 4-12, Bucharest, 70346 Romania
² Institute of Space Sciences, Bucharest-Magurele, P.O. Box MG-23, 76900 Romania
³ Institute for Theoretical Physics, University of Innsbruck, Technikerstrasse 25, 6020 Innsbruck, Austria

Corresponding author: ^a fritz.ehlotzky@uibk.ac.at

Received: 11 December 2002
Published online: 29 April 2003

Abstract

The two-photon ionization of the hydrogen atom from its ground state by a two-colour electromagnetic field consisting of two odd harmonics of the same IR laser is analyzed. The influence of the state of polarization of the bichromatic field on the azimuthal angular distribution and the dependence of the elliptic dichroism on the photon frequencies are reported.