Title :
Acoustooptic method for measurements of SAW steering beam angle and SAW velocity in an anisotropic solid
Author :
Tsarev, A.V. ; Kolosovsky, E.A.
Author_Institution :
Inst. of Semicond. Phys., Acad. of Sci., Novosibirsk, Russia
Abstract :
The application of two-optical-beams method for measurement of steering beam angle and velocity of surface acoustic wave (SAW) propagated in anisotropic solid is considered. The method is based on results of theoretical and experimental investigation of a simultaneous two light beam diffraction by a SAW in crystals. On the basis of carrying out analysis update of measuring technique, an algorithm of data processing and software for the determination of a SAW steering beam angle and also phase and group SAW velocities measurement are carried out. Experimental measurement of steering beam angle for the SAW propagating at 74.8° angle with respect to X-axis of LiNbO3 shows good agreement with calculated data
Keywords :
acousto-optical effects; elastic constants; light interferometers; surface acoustic waves; ultrasonic velocity measurement; LiNbO3; SAW steering beam angle; SAW velocity; X-axis; acoustooptic method; anisotropic solid; group SAW velocities; simultaneous two light beam diffraction; two-optical-beams method; Acoustic beams; Acoustic diffraction; Acoustic measurements; Acoustic propagation; Acoustic waves; Anisotropic magnetoresistance; Optical propagation; Solids; Surface acoustic waves; Velocity measurement;
Conference_Titel :
Frequency and Time Forum, 1999 and the IEEE International Frequency Control Symposium, 1999., Proceedings of the 1999 Joint Meeting of the European
Conference_Location :
Besancon
Print_ISBN :
0-7803-5400-1
DOI :
10.1109/FREQ.1999.841451
