Two-photon double ionization of helium in the region of photon energies 42-50 eV

I. A. Ivanov*, A. S. Kheifets

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    68 Citations (Scopus)

    Abstract

    We report the total integrated cross section (TICS) of two-photon double ionization of helium in the photon energy range from 42 to 50 eV. Our computational procedure relies on a numerical solution of the time-dependent Schrödinger equation on a square-integrable basis and subsequent projection of this solution on a set of final field-free states describing correlation in the two-electron continuum. Our results suggest that the TICS grows monotonically as a function of photon energy in the region of 42-50 eV, possibly reaching a maximum in the vicinity of 50 eV. We also present fully resolved triple-differential cross sections for selected photon energies.

    Original languageEnglish
    Article number033411
    JournalPhysical Review A - Atomic, Molecular, and Optical Physics
    Volume75
    Issue number3
    DOIs
    Publication statusPublished - 23 Mar 2007

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