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The influence of ion gratings on rotational wavepacket dynamics in H2

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Stavros, Vasilios G. and Leone, Stephen R. (2008) The influence of ion gratings on rotational wavepacket dynamics in H2. Chemical Physics Letters, Vol.452 (No.1-3). pp. 33-37. doi:10.1016/j.cplett.2007.12.034

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Official URL: http://dx.doi.org/10.1016/j.cplett.2007.12.034

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Abstract

We generalize earlier work [V.G. Stavros, E. Harel, S.R. Leone, J. Chem. Phys. 122 (2005) 064301] by illustrating the plausible role of ion gratings in time-dependent degenerate four-wave mixing (TD-DFWM) experiments in H2. We postulate that at high laser intensities (1014–1015 W/cm2), /H+ ions generate a static ion grating, it’s signature manifested in the transformation from homodyne- to heterodyne-detection of the TD-DFWM signal, depending on laser intensity. The change in signal detection agrees with the calculated intensity for barrier suppression ionization (BSI) in H2 and the reported onset of saturation for and H+, pointing towards the likely role of ion gratings in intense laser field, FWM experiments.

Item Type: Journal Article
Subjects: Q Science > QC Physics
Q Science > QD Chemistry
Divisions: Faculty of Science > Chemistry
Library of Congress Subject Headings (LCSH): Wave packets, Hydrogen, Ion-molecule collisions, Molecular dynamics
Journal or Publication Title: Chemical Physics Letters
Publisher: Elsevier BV
ISSN: 0009-2614
Official Date: 2008
Dates:
DateEvent
2008Published
Volume: Vol.452
Number: No.1-3
Page Range: pp. 33-37
DOI: 10.1016/j.cplett.2007.12.034
Status: Peer Reviewed
Publication Status: Published
Funder: United States. Dept. of Energy (DoE)
Grant number: DEAC02- 05CH11231 (DoE)

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