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Proceedings Paper

Femtosecond polarisation spectroscopy of the vector correlations in the photodissociation of polyatomic molecules
Author(s): Maxim F. Gelin; Alexander P. Blokhin
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Paper Abstract

In order to adequately describe rotation of photofragments and dynamics of vector correlations in liquids, we have generalized the J-diffusion model by allowing the rotational relaxation rate to be angular momentum dependent. The calculated nonequilibrium rotational correlation functions (CFs) are shown to decay much slower than their equilibrium counterparts, and orientational CFs of hot photofragments exhibit coherent behavior, which persists for several rotational periods. In practical terms, the standard and generalized J-diffusion models are shown to be almost indistinguishable under equilibrium conditions. Far from equilibrium, their predictions may differ dramatically.

Paper Details

Date Published: 9 July 2007
PDF: 10 pages
Proc. SPIE 6727, ICONO 2007: Nonlinear Laser Spectroscopy and High-Precision Measurements; and Fundamentals of Laser Chemistry and Biophotonics, 67271S (9 July 2007); doi: 10.1117/12.752396
Show Author Affiliations
Maxim F. Gelin, Univ. of Maryland (United States)
Alexander P. Blokhin, Institute of Molecular and Atomic Physics (Belarus)


Published in SPIE Proceedings Vol. 6727:
ICONO 2007: Nonlinear Laser Spectroscopy and High-Precision Measurements; and Fundamentals of Laser Chemistry and Biophotonics

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