Vibrational-Rotational Behavior of Diatomic Heteronuclear
Molecular Systems in Intense Laser Pulses
1

V. Yu. Kharin*, A. M. Popov, and O. V. Tikhonova

Skobeltsyn Institute of Nuclear Physics, Moscow State University, Moscow, 119991 Russia

*e-mail: w.kharin@list.ru

Received November 5, 2011; in final form, November 8, 2011; published online October 1, 2012

Abstract—The dynamics of diatomic heteronuclear molecules in the low-frequency intense laser pulses is
studied by numerical solution of the time-dependent Schrödinger equation and both rotational and vibrational
degrees of freedom are taken into account. The interference stabilization against the dissociation process is
found to take place in a strong field and is shown to result in trapping of population in different rotational-vibra-
tional bound states due to efficient Raman V- and -type transitions. The interplay between the vibrational and
rotational dynamics of a molecule is investigated. The dissociation suppression due to the interference mecha-
nism and all its attributes are established in the case of multiphoton coupling between the initial state and dis-
sociation continuum.

10.1134/S1054660X12110060


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