Место издания:Paul Scherrer Institute Zürich, Switzerland
Первая страница:349
Последняя страница:350
Аннотация:The photon energy dependence of various asymmetries in the angular distribution of
photoelectrons, produced via interfering one-photon and resonant two-photon ionization by
second and first harmonics, respectively, exhibits a Fano-like profile. This profile, which
depends on the pulse parameters, is studied within the lowest-order perturbation theory
(LOPT) and by solving the time-dependent Schrödinger equation (TDSE). Both linearly
and circularly polarized radiation fields are considered. Ionization of the hydrogen atom
by frequencies near the intermediate 2p resonant state is selected as a showcase.