Journal Article

Acoustic Goos-Hainchen effect

Lin Fa Ling Xue YuXiao Fa YongLan Han YanDong Zhang HongShen Cheng PengFei Ding GuoHui Li ShaoJie Tang ChunLing Bai BingJie Xi XiaoLin Zhang MeiShan Zhao

2017

Overview

We report two models of the lateral displacement of acoustic-wave scattering on a fluid-solid interface that reveal an acoustic analog of the Goos-Hainchen effect in optics. This acoustic analog is called the acoustic Goos-Hainchen effect. Using newly proposed models, we made numerical calculations for the system ofa water-Perspex interface. Specifically, in the post-critical-angle region, we observed a lateral displacement （and transition time） of the reflected P-wave with respect to the incident P-wave. The first arrival of the acoustic signal from the interface is found to be a reflected P-wave rather than the sliding-refraction P-wave usually described in traditional acoustic-logging sliding P-wave theory. For both proposed models, the effective propagation speed of the reflected P-wave along the interface depends on not only the physical properties of the interracial media but also the incident angle. These observations are intriguing and warrant further investigation.

• Subject: 位移模型 / 反射纵波 / 声学模拟 / 声波信号 / 数值计算 / 横向位移 / 液固界面 / 转换时间