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Dynamics of dissociation versus ionization in strong laser fields [electronic resource].

Published
Washington, D.C. : United States. Dept. of Energy, 1993.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
Pages: (10 pages) : digital, PDF file
Additional Creators
Brookhaven National Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
In this paper, experimental results are presented which clearly demonstrate the effectiveness that an external field has in altering the dissociation dynamics. The experiment examines the strong-field dissociation dynamics of molecular hydrogen ions and its deuterated isotopes. These studies involve multiphoton excitation in the intensity regime of 10[sup 11-14] W/cm[sup 2] with the fundamental and second harmonic of a ND:YAG or ND:YLF laser system. Measurements include energy resolved electron and mass spectroscopy which provide useful probes in elucidating the interaction dynamics predicted by existing models. The example this in this paper, examines the strong-field dissociation of H[sub 2][sup +], HD[sup +], and D[sub 2][sup +] at green (0.5 [mu]m) and (1[mu]m) frequencies. The diatomic ions are formed via multiphonon ionization of the neutral precursor which is physically separable from the dissociation process. This study provides the first observation of the dynamics associated with the above threshold dissociation (ATD) process and analogies will be made with the more familiar above threshold ionization (ATI) phenomenon.
Report Numbers
E 1.99:bnl-48611
E 1.99: conf-930184--2
conf-930184--2
bnl-48611
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Note
Published through SciTech Connect.
01/01/1993.
"bnl-48611"
" conf-930184--2"
"DE93009261"
3. SILAP conference, Hansui (Belgium), 8-14 Jan 1993.
DiMauro, L.F.; Yang, B.
Funding Information
AC02-76CH00016
View MARC record | catkey: 13806524