Time delay in valence-shell photoionization of noble-gas atoms

A. S. Kheifets*

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    110 Citations (Scopus)


    We use the nonrelativistic random-phase approximation with exchange to perform calculations of valence-shell photoionization of Ne, Ar, Kr, and Xe from their respective thresholds to photon energy of 200 eV. The energy derivative of the complex phase of the photoionization matrix elements is converted to the photoelectron group delay that can be measured in attosecond streaking or two-photon sideband interference experiments. Comparison with reported time-delay measurements in Ne and Ar at a few selected photon energies is made. Systematic mapping of time delay across a wide range of photon energies in several atomic targets allows to highlight important aspects of fundamental atomic physics that can be probed by attosecond-time-delay measurements.

    Original languageEnglish
    Article number063404
    JournalPhysical Review A - Atomic, Molecular, and Optical Physics
    Issue number6
    Publication statusPublished - 6 Jun 2013


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