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Fluorescence kinetics of systems with a quasi-continuum of excited states

✍ Scribed by S.B. Phillips; R.L. Lyke

Publisher: Elsevier Science
Year: 1987
Tongue: English
Weight: 387 KB
Volume: 136
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(87)80245-2

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✦ Synopsis

Recent fluorescence lifetime studies suggest that for many molecular systems decay processes may most appropriately be-described by a distribution of excited state rate constants. A convenient formalism for describing these processes is outlined. The decay rate for a system with a continuum of excited states can be identified with the one-sided Laplace transform of the corresponding excited state probability distribution function. It is also shown, by explicit calculation, that the decay kinetics for a continuous distribution of fluorescing species cannot be well approximated by a finite number of discrete decay modes.

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