1 March 1995 Application of picosecond laser spectroscopy in investigation of initial stages of fluorescence quenching
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Abstract
The initial stage of fluorescence quenching (the transient quenching) has been studied for the S2-xantanione/3,3-diethylpentane/perfluoro-1,3-dimethylcyclohexane (as a donor/quencher/solvent, respectively) system. A picosecond time-correlated single photon counting system with a proximity type microchannel plate photomultiplier tube was used in dynamic studies of a strong time dependence of the transient quenching of S2-xanthione fluorescence. A satisfactory description of the data within the Smoluchowski-Collins-Kimball model has been obtained, permitting the determination of realistic values of the encounter radius, the sum of diffusion coefficients, and the intrinsic rate coefficient.
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W. Augustyniak, Anthony A. Maciejewski, M. Sikorski, R. P. Steer, M. Szymanski, "Application of picosecond laser spectroscopy in investigation of initial stages of fluorescence quenching", Proc. SPIE 2202, Laser Technology IV: Research Trends, Instrumentation, and Applications in Metrology and Materials Processing, (1 March 1995); doi: 10.1117/12.203248; https://doi.org/10.1117/12.203248
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