Title :
Velocity of surface acoustic waves in metallised PE LiNbO3
Author :
Ciplys, D. ; Rimeika, R.
Author_Institution :
Fac. of Phys., Vilnius Univ., Lithuania
fDate :
8/20/1998 12:00:00 AM
Abstract :
The velocity of surface acoustic waves in proton-exchanged 128° rotated Y cut X propagation lithium niobate with a Cu or Al thin film deposited on the sample surface has been measured using acousto-optic techniques in a wide frequency range. The electrical and mechanical perturbations of the propagation surface introduced by the metal film affects the acoustic velocity, thus providing a mean for its accurate control
Keywords :
acousto-optical effects; interdigital transducers; ion exchange; lithium compounds; metallic thin films; surface acoustic waves; ultrasonic propagation; ultrasonic velocity; Al thin film; Al-LiNbO3; Cu thin film; Cu-LiNbO3; SAW velocity; X propagation; Y cut; acousto-optic techniques; electrical perturbations; mechanical perturbations; metallised PE LiNbO3; propagation surface; proton-exchanged material; surface acoustic wave velocity;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19981123
