Two-dimensional phononic crystals: surface acoustic waves

被引:16
作者
Tanaka, Y [1 ]
Tamura, S [1 ]
机构
[1] Hokkaido Univ, Dept Appl Phys, Sapporo, Hokkaido 060, Japan
来源
PHYSICA B | 1999年 / 263卷
关键词
surface acoustic waves; stop bands; phononic crystals;
D O I
10.1016/S0921-4526(98)01197-1
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
We study theoretically the surface localized acoustic waves in two-dimensional phononic crystals consisting of circular cylinders of AlAs embedded in a GaAs matrix. The folding and anisotropy of surface wave branches as well as the existence of pseudosurface wave branches are predicted. We present stop band distributions of both the surface and bulk acoustic waves, which would be relevant to compare with the ultrasound imaging experiment. (C) 1999 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:77 / 80
页数:4
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