Abstract
The response to an ionizing radiation field of a simple one-electron atomic system modelled by an attractive Fermi-type pseudopotential is investigated under the assumption that the source intensity is sufficiently low for a perturbation theory treatment at appropriate order to be adequate in dealing with the radiation field-matter interaction. One- and two-photon ionization cross-sections are evaluated either in the length or in the velocity forms by using an approach recently put forward by the authors, which stresses the nature of such quantities as Fourier transforms of relevant time-dependent correlation functions. Some remarks concerning the merits of different gauges in approximate two-photon ionization cross-section calculations conclude the paper.
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 callDisclaimer: 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.
