| Issue |
J. Phys. II France
Volume 1, Number 9, September 1991
|
|
|---|---|---|
| Page(s) | 1033 - 1051 | |
| DOI | https://doi.org/10.1051/jp2:1991204 | |
J. Phys. II France 1 (1991) 1033-1051
Above threshold photodissociation in H 2 and H 2+
A. D. Bandrauk, E. Constant and J.-M. GauthierDépartement de chimie, Faculté des sciences, Université de Sherbrooke, Sherbrooke, Québec, J1K 2R1, Canada
(Received 12 March 1991, accepted in final form 27 May 1991)
Abstract
A coupled equations approach is used to calculate the probabilities of photophysical processes in the ten photon absorption spectrum of H
2 at wavelength
nm. At high intensities, i.e.,
I > 1010 W/cm
2, it is shown that above threshold photodissociation (ATPD) occurs readily in the B
state of H
2 and in X
of H
+2. Laser-induced avoided crossings between the dressed
B and
F electronic potentials of H
2 and also between the dressed
X and
A potentials of H
+2 result in anomalous proton yields at intensities above 10
11 W/cm
2. The vibronic structure of the dressed X
potential of H
+2 appears in all photodissociation yields as laser-induced resonances with intensity dependent line widths.
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