Effects of elastic anisotropy on acoustic-wave rectification
Effects of elastic anisotropy on acoustic-wave rectification
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DOI：
10.7567/jjap.55.014303
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发表时间：
2015
影响因子：
1.5
通讯作者：
Y. Tanaka;N. Nishiguchi
中科院分区：
文献类型：
--
作者：
Y. Tanaka;N. Nishiguchi
本文研究了弹性各向异性材料中含有周期性三角孔阵列的声波整流器中体声波的整流现象。特别注意弹性各向异性对声子模耦合的影响，我们阐明了准纵波和慢横波的整流性能。我们发现，弹性各向异性显着提高声波整流的各向同性材料组成的系统相比，特别是纵向声波。
We investigate numerically the rectification phenomena of bulk acoustic waves in an acoustic-wave rectifier composed of an elastically anisotropic material containing a periodic array of triangular holes. Paying special attention to the effects of elastic anisotropy on phonon mode coupling, we elucidate the rectification performance for quasi-longitudinal and slow transverse waves. We find that elastic anisotropy markedly improves acoustic-wave rectification in comparison with the system composed of isotropic materials, particularly for longitudinal acoustic waves.