Angular distributions in two-colour two-photon ionization of He

Hector F. Rey, Hugo van der Hart

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Abstract

We present R-Matrix with time dependence (RMT) calculations for the photoionization of helium irradiated by an EUV laser pulse and an overlapping IR pulse with an emphasis on the anisotropy parameters of the sidebands generated by the dressing laser field. We investigate how these parameters depend on the amount of atomic structure included in the theoretical model for two-photon ionization. To verify the accuracy of the RMT approach, our theoretical results are compared with experiment.
Original languageEnglish
Article number225601
Number of pages9
JournalJournal of Physics B: Atomic, Molecular and Optical Physics
Volume47
Issue number22
Early online date07 Nov 2014
DOIs
Publication statusPublished - 28 Nov 2014

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