Anisotropic light diffraction in crystals with a large acoustic-energy walk-off

被引：0
|
作者：
V. I. Balakshy
A. S. Voloshin
V. Ya. Molchanov
机构：
[1] Moscow State University,
[2] NITU “MISIS,undefined
[3] ”,undefined
来源：
Optics and Spectroscopy | 2014年 / 117卷
关键词：
Bragg Angle; Acoustic Field; Acoustic Beam; Acousto Optic Interaction; Beam Walk;
D O I：
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中图分类号：
学科分类号：
摘要：
The influence of energy walk-off in an acoustic beam on the characteristic of anisotropic Bragg diffraction of light has been investigated by the example of paratellurite crystal. The angular and frequency characteristics of acousto-optic diffraction have been calculated in wide ranges of ultrasound frequencies and Bragg angles using the modified Raman-Nath equations. It is shown that the walk-off of an acoustic beam may change (either widen or narrow) significantly the frequency and angular ranges. The calculation results have been experimentally checked on an acousto-optic cell made of 10.5°-cut paratellurite crystal.
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页码：801 / 806
页数：5
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