Diffraction of light by ultrasound in optically active uniaxial crystals
Abstract
The diffraction of light by ultrasound is examined in uniaxial crystals exhibiting optical activity for small angles between the incident wave and the axis of the crystal (where optical activity masks diffraction phenomena) and for angles of the order of Bragg angles. Expressions are found for the fundamental and diffraction components of a light field. New Bragg angles are found that lie in the interval between the ordinary angles occurring for epsilon sub c = 0. The new Bragg angles observed differ significantly from the old values for gyration tensor component values that exceed the values for TeO2 by factors of several hundred. The nonmutual effect in the acoustic field is described; it is found that optical activity apparently does not change the order of nonmutuality.
 Publication:

USSR Rept Phys Math JPRS UPM
 Pub Date:
 February 1986
 Bibcode:
 1986RpPhM.......51Z
 Keywords:

 Bragg Angle;
 Diffraction Patterns;
 Diffraction Propagation;
 Ultrasonic Radiation;
 Acoustics;
 Single Crystals;
 Sound Fields;
 Optics