The development of turbulence in the active medium of a fast-flow gas-discharge laserстатья
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Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 10 апреля 2024 г.
Авторы:
Panchenko V.Ya ,
Zavalov Yu N. ,
Galushkin M.G. ,
Grishaev R.V. ,
Golubev V.S. ,
Dubrov V.D.
Журнал:
Laser Physics
Том:
16
Номер:
1
Год издания:
2006
Издательство:
IOP Publishing
Местоположение издательства:
[Bristol, UK], England
Первая страница:
40
Последняя страница:
51
DOI:
10.1134/S1054660X0601004X
Аннотация:
The effect of pump nonequilibrium on the heat generation and the parameters of turbulent flow in the active medium of a fast-flow gas-discharge laser is studied. It is shown that the amplitudes of the turbulent pulsations of the density and refractive index of the active medium depend on the pump method and the degree of saturation by laser radiation and grow with the pump level. Criteria for estimating the effect of turbulence on the quality of the active medium are presented. A model is proposed that relates the build-up of the turbulent pulsations of the gas density and refraction to the heterogeneous heat release in the nonequilibrium active medium. The effect is determined by both the growth of the isobar local temperature pulsations and the ionization-overheating instability. In the case of dc-discharge pumping, the optical inhomogeneity of the active medium may substantially exceed that for the high-frequency discharge pumping. © Nauka/Interperiodica 2006.
Добавил в систему:
Панченко Владислав Яковлевич