Time-resolved surface acoustic wave propagation across a single grain boundary
Time-resolved surface acoustic wave propagation across a single grain boundary
复制标题
DOI：
10.1103/physrevb.73.125403
复制
发表时间：
2006-03
影响因子：
3.7
通讯作者：
D. Hurley;O. Wright;O. Matsuda;T. Suzuki;S. Tamura;Y. Sugawara
中科院分区：
文献类型：
--
作者：
D. Hurley;O. Wright;O. Matsuda;T. Suzuki;S. Tamura;Y. Sugawara
利用光学技术，我们提出了在两个单晶之间的边界传播的高频表面声波的时间分辨测量。选择弹性各向异性立方晶体铜，可以观察到各向异性表面声传播与cusidal波前以及存在显著取向不匹配的折射。揭示了地下晶界角对透射声场的影响。
Using an optical technique, we present time-resolved measurements of high frequency surface acoustic waves propagating across the boundary between two single crystals. The choice of the elastically anisotropic cubic crystal copper allows the observation of anisotropic surface acoustic propagation with cuspidal wave fronts together with refraction in the presence of significant orientation mismatch. The effect of the subsurface grain boundary angle on the transmitted acoustic field is revealed.