학술논문
Analysis of the leaky surface acoustic wave radiation in YX-LiTaO3 for symmetric and non-symmetric IDTs
Document Type
Conference
Author
Source
2009 IEEE International Ultrasonics Symposium Ultrasonics Symposium (IUS), 2009 IEEE International. :2049-2052 Sep, 2009
Subject
Language
ISSN
1051-0117
1948-5727
1948-5719
1948-5727
1948-5719
Abstract
Optical probing was used to investigate the IDT-radiated bulk acoustic wave properties in Y-cut X-propagation LiTaO 3 crystal. IDT radiation patterns for symmetric and nonsymmetric IDTs with periods 50μm and 48μm, electrode pair numbers 35 and 36, respectively, were determined from the diffracted light intensity dependences on light incidence angle and compared to each other. Variation of the IDT electrode/gap width ratio enables to adjust spatial distribution of the radiated acoustic beam intensity.