Recollision Excitation, Electron Correlation, and the Production of High-Momentum Electrons in Double Ionization

Journal Article · Fri Sep 12 04:00:00 EDT 2008 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.101.113001· OSTI ID:21179704

Haan, S L; Van Dyke, J S; Smith, Z S ^[1]

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1. Department of Physics and Astronomy, Calvin College, Grand Rapids, Michigan 49546 (United States)

The production of high-momentum electrons in double ionization of helium by near-infrared lasers is investigated using three-dimensional classical ensembles. The nucleus' role is examined by systematically adjusting the nuclear potential. The primary source of the high-energy electrons is found to be backscattering off the nucleus at recollision. Recollision excitation with backscattering of the unbound electron is found to be especially important. It is shown that recollision excitation with ionization before the next field maximum can lead to a correlated electron pair.

• OSTI ID: 21179704
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 11 Vol. 101; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BACKSCATTERING
ELECTRON CORRELATION
ELECTRONS
EXCITATION
HELIUM
IONIZATION
LASERS
NUCLEAR POTENTIAL
THREE-DIMENSIONAL CALCULATIONS