Reconstruction of Three-Dimensional Images of Surface Acoustic Waves by Means of Computer-Controlled Laser Probe

Abstract

A computer-controlled laser probe surface-acoustic-wave (SAW) observation system was constructed, which facilitates reconstruction of 3-dimensional images of travelling Rayleigh SAWs. Vivid images of a propagating single SAW and two colliding SAWs on a glass plate were observed by this system. The system is thus used as a powerful tool for elucidating the dynamic behaviors of SAW, especially for identification of surface acoustic solitons.