Application of picosecond laser spectroscopy in investigation of initial stages of fluorescence quenching

W. Augustyniak; Anthony A. Maciejewski; M. Sikorski; R. P. Steer; M. Szymanski

doi:10.1117/12.203248

1 March 1995 Application of picosecond laser spectroscopy in investigation of initial stages of fluorescence quenching

W. Augustyniak, Anthony A. Maciejewski, M. Sikorski, R. P. Steer, M. Szymanski

Proceedings Volume 2202, Laser Technology IV: Research Trends, Instrumentation, and Applications in Metrology and Materials Processing; (1995) https://doi.org/10.1117/12.203248
Event: Laser Technology: Fourth Symposium, 1993, Szczecin, Poland

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.

Citation Download Citation

W. Augustyniak, Anthony A. Maciejewski, M. Sikorski, R. P. Steer, and 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); https://doi.org/10.1117/12.203248

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