Full band gaps for surface acoustic waves in piezoelectric phononic crystals

被引：0
|
作者：
Laude, V [1 ]
Wilm, M [1 ]
Benchabane, S [1 ]
Khelif, A [1 ]
机构：
[1] CNRS, Inst FEMTO ST, Dept LPMO, UMR 6174, F-25044 Besancon, France
来源：
2004 IEEE Ultrasonics Symposium, Vols 1-3 | 2004年
关键词：
D O I：
暂无
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
Surface acoustic waves in phononic crystals consisting of holes in a Y-cut lithium niobate substrate are identified numerically using a plane-wave-expansion method. The phononic crystal has a square lattice with circular void inclusions with a filling fraction of 63%. It is found that a large full-band gap with a fractional bandwidth of 34% exists for surface acoustic waves of any polarization and incidence, coincidentally with the full band gap for bulk waves propagating in the plane of the surface.
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页码：1046 / 1049
页数：4
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