Accession Number:

AD0756778

Title:

Probing of Acoustic Shear Wave Radiation in Surface Wave Devices,

Descriptive Note:

Corporate Author:

TORONTO UNIV (ONTARIO)

Report Date:

1972-03-28

Pagination or Media Count:

4.0

Abstract:

Simultaneous Rayleigh and shear wave generation has been achieved using interdigital transducers on a yz LiNbO3 sample at a frequency of 104 MHz. A large-diameter laser beam of 5145-A wavelength and 1-W cw power was transmitted through the sample and was modulated by two acoustic waves. The double-modulated laser beam causes fringes at the recording plane, which were used for an accurate determination of the shear wave velocity vs and of the shear wave acoustic radiation angle alpha into the crystal. It was found that vs3.547 x 10 to the 3rd power msec for alpha 14.3 degrees. The shear wave conversion loss of the transducer was approximately 6 dB. Author

Subject Categories:

  • Solid State Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE