Direct versus delayed pathways in strong-field non-sequential double ionization

A. Emmanouilidou, Jonathan Parker, Laura Moore, Kenneth Taylor

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Abstract

We report full-dimensionality quantum and classical calculations of double ionization (DI) of laser-driven helium at 390 nm. Good agreement is observed. We identify the relative importance of the two main non-sequential DI pathways, the direct|with an almost simultaneous ejection of both electrons|and the delayed. We find that the delayed pathway prevails at small intensities independently of total electron energy but at high intensities the direct pathway predominates up to a certain upper-limit in total energy which increases with intensity. An explanation for this increase with intensity is provided.
Original languageEnglish
Article number043001
Number of pages1
JournalNew Journal of Physics
Volume13
DOIs
Publication statusPublished - 04 Apr 2011

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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