Minimal diffraction cuts for acoustic surface wave propagation on Bi12GeO20
作者:
A. J. Slobodnik,
T. L. Szabo,
期刊:
Journal of Applied Physics
(AIP Available online 1973)
卷期:
Volume 44,
issue 7
页码: 2937-2941
ISSN:0021-8979
年代: 1973
DOI:10.1063/1.1662686
出版商: AIP
数据来源: AIP
摘要:
Techniques are described for the theoretical prediction of acoustic surface wave orientations on anisotropic crystalline substrates having minimal diffraction spreading. These techniques are illustrated by the theoretical and experimental discovery of a minimal diffraction cut on Bi12GeO20having diffraction retarded by at least two orders of magnitude over isotropic materials. Euler angles for this orientation are 45°, 40.04°, and 90°, while the surface wave velocity and the &Dgr;v/vparameter are 1827 m/sec and 0.0031, respectively.
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