Real-time Simulations and Experiments on Surface Acoustic Wave Scattering in Periodic Microstructures

被引：0
|
作者：
Veres, Istvan A. [1 ]
Profunser, Dieter M. [2 ]
Wright, Oliver B. [2 ]
Matsuda, Osamu [2 ]
Culshaw, Brian [1 ]
机构：
[1] Univ Strathclyde, Dept Elect & Elect Engn, Ctr Ultrason Engn, Glasgow G1 1XW, Lanark, Scotland
[2] Hokkaido Univ, Grad Sch Engn, Dept Appl Phys, Sapporo, Hokkaido 0608628, Japan
来源：
CHINESE JOURNAL OF PHYSICS | 2011年 / 49卷 / 01期
基金：
英国工程与自然科学研究理事会;
关键词：
MODES;
D O I：
暂无
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Surface acoustic wave scattering in periodically microstructured surfaces is investigated numerically and experimentally. We perform the simulations by a real-time finite element technique and experiments by ultrashort pulsed optical excitation and interferometric detection. Good agreement is obtained between simulation and experiment. Our results clearly show the opening of phononic stop bands of the excited Rayleigh-like waves at the Brillouin zone boundary. In addition, we investigate the influence of the grating thickness by numerical simulations. Our results show the strong influence of the grating thickness on the position and width of the phononic stop bands.
引用
收藏
页码：534 / 541
页数：8
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