Тип публикации: доклад, тезисы доклада, статья из сборника материалов конференций
Конференция: ICONO 2007 Conference; Minsk, BYELARUS; Minsk, BYELARUS
Год издания: 2007
Идентификатор DOI: 10.1117/12.752497
Ключевые слова: xanthene dyes, gelatin, photoreduction, four-level energy scheme, reverse intersystem crossing, upper triplet states, Concentration (process), Mathematical models, Photoexcitation, Photolysis, Reaction kinetics, Reduction, Four level energy schemes, Gelatins, Kinetic models, Polyatomic molecules, Dyes
Аннотация: Modeling of kinetics of photoprocesses in polyatomic molecules based on four-level energy scheme is carried out. The model includes the processes in dye under cw photoexcitation and takes into account a reverse intersystem crossing and photochemical reaction from the upper triplet states. The analytical time-dependent relation for Показать полностьюdye concentration of the initial form was obtained taking into account the contrast of rates of various photoprocesses and using of quasistationary approximation. It was shown that rate constant of photolysis correlates with probability of intersystem crossing of the dyes. For the xanthene dyes in gelatin it was shown that simple experimental method of cw laser photolysis combined with the kinetic model could be effective technique of study of upper excited states participation.
Журнал: ICONO 2007: NONLINEAR LASER SPECTROSCOPY AND HIGH-PRECISION MEASUREMENTS; AND FUNDAMENTALS OF LASER CHEMISTRY AND BIOPHOTONICS
Выпуск журнала: Vol. 6727
Номера страниц: 7272-7272
ISSN журнала: 0277786X
Место издания: BELLINGHAM
Издатель: SPIE-INT SOC OPTICAL ENGINEERING