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Strong-field short-pulse ionization of the molecular hydrogen ion

✍ Scribed by C.R. Mendez; J.R. Vazquez de Aldana; L. Plaja; L. Roso; A.M. Popov; O.V. Tikhonova; P.A. Volkov; E.A. Volkova

Publisher: John Wiley and Sons
Year: 2004
Tongue: English
Weight: 174 KB
Volume: 1
Category: Article
ISSN: 1612-2011
DOI: 10.1002/lapl.200310007

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✦ Synopsis

The strong-field molecular dynamics is studied by direct numerical integration of the non-stationary Schroedinger equation for laser pulses of femtosecond duration. The calculations are performed beyond the Born-Oppenheimer approximation with both electronic and rotational degrees of freedom being taken into account. The rotational dynamics is confirmed to play a significant role during molecular ionization. Nevertheless, a range of parameters is found that provide molecular ionization to be correctly described under assumption of "frozen" molecular axis orientation. Using this model the results of 3D electron dynamics of a molecule are obtained. For ultrashort pulses a 3D account of the electronic degrees of freedom is proved to provide a full description of the strong-field molecular behavior.

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