Strongly localized acoustic surface waves propagating along a V-groove

被引：13

作者：

Liu, Fengming

Peng, Shasha

Jia, Han

Ke, Manzhu

Liu, Zhengyou ^{[1
]}

机构：

[1] Wuhan Univ, Minist Educ, Key Lab Acoust & Photon Mat & Devices, Wuhan 430072, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2009年 / 94卷 / 02期

基金：

中国国家自然科学基金;

关键词：

acoustic wave propagation; acoustic wave velocity; finite difference time-domain analysis; polymers; surface acoustic wave waveguides; surface acoustic waves; CHANNEL PLASMON-POLARITONS; METAL-SURFACE; GUIDES; DISPERSION; LOSSES;

D O I：

10.1063/1.3072346

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Strongly localized acoustic surface waves propagating along an immersed V-groove are numerically analyzed and experimentally demonstrated. We analyze the dispersion relation and the distribution of displacements of such groove waves using the compact two-dimensional finite-difference time-domain method. It is shown that they are dispersionless and strongly confined in the lateral cross section. The variations in their velocities as a function of the apex angle are also presented. Furthermore, we implement experimental observation by the near-field detection of these predicted waves in the 30 degrees polymethyl methacrylate groove. The experimental measurements of the wave velocities agree very well with the numerical results.

引用

页数：3

共 19 条

[1] Channel plasmon subwavelength waveguide components including interferometers and ring resonators [J].