Acoustic Wave Propagation in TeO2 Single Crystal
Acoustic Wave Propagation in TeO2 Single Crystal
复制标题
TeO2 单晶中的声波传播
DOI：
--
复制
发表时间：
1972
期刊：
影响因子：
--
通讯作者：
N. Niizeki
中科院分区：
文献类型：
--
作者：
Y. Ohmachi;N. Uchida;N. Niizeki
计算了副卫星体TeO_2的声相速度面和射线方向。波在这种高度各向异性介质中传播的特征已经使用阴影方法和Schaefer-Bergmann衍射技术进行了光学确认。已经发现，波法线方向的微小不对准会严重降低由高度各向异性介质（如TeO 2）组成的声学或声光器件的性能特性。本文的计算和实验也证实了速度温度系数为零的横模的存在。
Acoustic phase velocity surfaces and ray directions in paratellurite, TeO2, have been calculated. Characteristic features of the wave propagation in this highly anisotropic medium have been optically confirmed using the shadow method and Schaefer‐Bergmann diffraction technique. A small misalignment of the wave normal direction has been found to degrade seriously the performance characteristics of acoustic or acousto‐optical devices composed of a highly anisotropic medium such as TeO2. The existence of the transverse mode with a zero temperature coefficient of velocity has been also confirmed by the present calculation and experiment.