✦ LIBER ✦

Dephasing processes of molecular vibrations in liquids

✍ Scribed by S.F. Fischer; A. Laubereau

Publisher: Elsevier Science
Year: 1975
Tongue: English
Weight: 765 KB
Volume: 35
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(75)85577-1

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✦ Synopsis

A model based on :iemiclassical collision theory is presented to describe the dephasing of vibrationally excited molecules in a Iiquid. It is sholvn that fluctuations of the vibrational frequencies, which are uuzed by the intermolecular interaction, lead to phase rc:laxation of 3 coherently excited stiite. The theoretic4 restits compare favorably with data of ?he vibratio_ti tiephasing time measured with picosecond probing techniques. The relationship between the dephasing time and the linewidths observed in IR and F&man spectroscopy is discussed.

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