Title :
Propagation of acoustic waves along the surface of a sphere
Author :
Ishikawa, Satoru ; Cho, Hideo ; Nakaso, Noritaka ; Tsukahara, Yusuke ; Yamanaka, Kazushi
Author_Institution :
Graduate Sch. of Eng., Tohoku Univ., Sendai, Japan
Abstract :
By virtue of the diffraction-free propagation of surface acoustic waves (SAWs) on a sphere, we observed multiple round-trips of as many as 100 turns. After experimental verification of the beam shapes, we proposed ball acoustooptic devices utilizing the focussing SAWs
Keywords :
acoustic wave propagation; surface acoustic waves; SAWs; acoustic waves propagation; ball acoustooptic devices; beam shapes; diffraction-free propagation; multiple round-trips; sphere surface; surface acoustic waves; Acoustic beams; Acoustic propagation; Acoustic waves; Apertures; Collimators; Sawing machines; Shape; Steel; Surface acoustic wave devices; Surface acoustic waves;
Conference_Titel :
Ultrasonics Symposium, 2001 IEEE
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-7177-1
DOI :
10.1109/ULTSYM.2001.991836
