Low Temperature Physics: 26, 719 (2000); https://doi.org/10.1063/1.1312399 (8 pages)
Физика Низких Температур: Том 26, Выпуск 9-10 (Сентябрь 2000), c. 972-980    ( к оглавлению , назад )

Experimental analysis of 13CO2 infrared stimulated

H. Chabbi, P. R. Dahoo 1 , H. Dubost 2 , B. Gauthier-Roy, A.-M. Vasserot and L. Abouaf-Marguin

Laboratoire de Physique Moleculaire et Applications du CNRS, associe a l▓Universite Pierre et Marie Curie, Tour 13, boite 76, 4 place Jussieu, 75252 Paris Cedex 05, France
E-mail: la@ccr.jussieu.fr

Received March 10, 2000

Аннотация

Vibrational stimulated emissions of CO2 trapped in low temperature argon matrices have been found experimentally not only in the 16 mm region (n2 manifold) but also at 10 mm (n3 - n1 transition) in the double trapping site of concentrated samples. A detailed experimental description of these emissions is reported, including spectral analysis, time-resolved studies, laser energy dependence, and concentration and temperature effects. The characteristics of the emissions are discussed, giving some insight into the nonradiative intramolecular V√V transfers from the laser excited level n3=1 towards the n2 manifold, and inside this manifold.

PACS:
78.45.+h - Stimulated emission (see also 42.55.-f Lasers)
78.30.√j -
34.30.+h - Intramolecular energy transfer; intramolecular dynamics; dynamics of van der Waals molecules