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- Title
Anisotropic light diffraction in crystals with a large acoustic-energy walk-off.
- Authors
Balakshy, V.; Voloshin, A.; Molchanov, V.
- Abstract
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.
- Subjects
ANISOTROPY; ACOUSTIC properties of crystals; OPTICAL diffraction; SOUND waves; TELLURITES; ANGULAR measurements
- Publication
Optics & Spectroscopy, 2014, Vol 117, Issue 5, p801
- ISSN
0030-400X
- Publication type
Article
- DOI
10.1134/S0030400X14110046