Abstract
The angular distribution of the emitted electrons, following the two-photon ionization ofhydrogen-like ions, is studied within the framework of second order perturbation theoryand the Dirac equation. Using a density matrix approach, we have investigated the effectswhich arise from the polarization of the incoming light as well as from the highermultipoles in the expansion of the electron–photon interaction. For medium- andhigh-Z ions, in particular, the non-dipole contributions give rise to a significant changein the angular distribution of the emitted electrons, if compared with theelectric dipole approximation. This includes a strong forward emission while, inthe dipole approximation, the electron emission always occurs symmetricallywith respect to the plane which is perpendicular to the photon beam. Detailedcomputations for the dependence of the photoelectron angular distributions onthe polarization of the incident light are carried out for the ionization of H, andXe53+ and U91+ (hydrogen-like) ions.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Journal of Physics B: Atomic, Molecular and Optical Physics
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
