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Photoelectron angular distribution in two-pathway ionization of neon with femtosecond XUV pulses

  • Nicolas Douguet
  • Elena V. Gryzlova
  • Ekaterina I. Staroselskaya
  • Klaus Bartschat
  • Alexei N. Grum-Grzhimailo
Regular Article
Part of the following topical collections:
  1. Topical Issue: Many Particle Spectroscopy of Atoms, Molecules, Clusters and Surfaces

Abstract

We analyze the photoelectron angular distribution in two-pathway interference between nonresonant one-photon and resonant two-photon ionization of neon. We consider a bichromatic femtosecond XUV pulse whose fundamental frequency is tuned near the 2p 53s atomic states of neon. The time-dependent Schrödinger equation is solved and the results are employed to compute the angular distribution and the associated anisotropy parameters at the main photoelectron line. We also employ a time-dependent perturbative approach, which allows obtaining information on the process for a large range of pulse parameters, including the steady-state case of continuous radiation, i.e., an infinitely long pulse. The results from the two methods are in relatively good agreement over the domain of applicability of perturbation theory.

Graphical abstract

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Copyright information

© EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2017

Authors and Affiliations

  • Nicolas Douguet
    • 1
  • Elena V. Gryzlova
    • 2
  • Ekaterina I. Staroselskaya
    • 3
  • Klaus Bartschat
    • 1
  • Alexei N. Grum-Grzhimailo
    • 2
  1. 1.Department of Physics and AstronomyDrake UniversityDes MoinesUSA
  2. 2.Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State UniversityMoscowRussia
  3. 3.Faculty of Physics, Lomonosov Moscow State UniversityMoscowRussia

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