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The peculiarities of triggering modes in open nonlinear photochemically active systems under biharmonic pumpingстатья
Информация о цитировании статьи получена из
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Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 10 февраля 2016 г.
- Авторы: Barashev P.P., Pronchev G.B.
- Журнал: Chemical Physics Reports
- Том: 18
- Номер: 5
- Год издания: 1999
- Первая страница: 807
- Последняя страница: 818
- Аннотация: The peculiarities of bistable (triggering) operation modes of open photochemical reactors with a working medium subject to biharmonic pumping by two independent light beams, either being capable of exciting the autocatalytic and nonautocatalytic components of the medium, are analyzed in the quasi-stationary approximation, following the kinetic line of attack and using as examples photochemical analogs of the Edelstein and Schlögl models with and without a three-body stage of the reaction, respectively. It turns out that with biharmonic pumping, the behaviour of an open photochemical system becomes more diversified, as far as the parameters of bistable operation modes and plausible trends of system evolution are concerned. It is shown that simple variation of biharmonic-pumping parameters offers a way of initiating or suppressing unstable modes of reactor operation, and there are certain concentration states of the system such that only biharmonic pumping can force the system into the bistable mode and not single-frequency (monochromatic) excitation or variation of just concentration parameters. It is also found that nonadditive action of biharmonic pumping may alter the feasible routes of system evolution, so that the boundaries of the bistable modes realized under biharmonic pumping and under monochromatic excitation or changes in the concentrations of the light-pumped components of the medium either shift in the same direction (bistability of type I) or in different directions (bistability of type II).
- Добавил в систему: Прончев Геннадий Борисович