✦ LIBER ✦

Time-resolved fluorescence depolarization in the decay of intermediate case molecules. Zero-field level crossing of the molecular eigenstates of 1B3u pyrazine

✍ Scribed by Y. Matsumoto; L.H. Spangler; D.W. Pratt

Publisher: Elsevier Science
Year: 1983
Tongue: English
Weight: 383 KB
Volume: 95
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(83)80571-5

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✦ Synopsis

The time dependence of the degree of polarization has been measured in the fluorescence decay of "single" rotational levels of ' B3u pyrazine follou%tg escitation by a 5 ns laser pulse. The emission is depolarized non-esponentialiy in time. This behavior is attributed to dephasing processes by which the initial, non-stationary state evolves into a group of phase incoherent molecular eigenstates.