SOUND-WAVE PROPAGATION IN ACOUSTOOPTICAL CRYSTALS OF PARATELLURITE AND CALOMEL.

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作者：
Voronova, M.A.
Parygin, V.N.
机构：
来源：
Moscow University Physics Bulletin (English Translation of Vestnik Moskovskogo Universiteta, Fizik | 1987年 / 42卷 / 04期
关键词：
CRYSTALS - Acoustic Properties - LIGHT - Acoustooptical Effects - OPTICAL INSTRUMENTS;
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摘要：
The acoustic field of a slow quasi-shear wave created by a plane converter with a Gaussian aperture function close to the crystallographic direction is investigated for paratellurite and calomomel crystals. The parabolic approximation of the wave-vector surface is used. The dependence of the parabolic-approximation coefficients on the wave-vector direction is given. The limits of parabolicity are given. The method of calculating the geometry of the acoustic beam excited along the axis is considered. The results are relevant to understanding the characteristics of acoustooptical instruments.
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页码：38 / 44
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