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.

引用

页码：1046 / 1049

页数：4

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