Acousto-optic characteristics in media with strong acoustic anisotropyстатья
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Дата последнего поиска статьи во внешних источниках: 5 мая 2015 г.
Аннотация:Calculations of acousto-optic diffraction spectrum are fulfilled on the basis of modified Raman-Nath equations which take into consideration the acoustic energy walk-off. It is shown that, depending on acousto-optic interaction geometry, the walk-off can change essentially angular and frequency ranges of the interaction. Coefficients of broadening are put in practice as characteristics of the walk-off influence. The calculations are carried out for
5-degree crystal cut of a paratellurite crystal in wide ranges of ultrasound frequencies and Bragg angles.