Evidence for complete surface wave band gap in a piezoelectric phononic crystal

被引：263

作者：

Benchabane, S. ^{[1
]}

Khelif, A. ^{[1
]}

Rauch, J. -Y. ^{[1
]}

Robert, L. ^{[1
]}

Laude, V. ^{[1
]}

机构：

[1] Univ Franche Comte, CNRS, UMR 6174, Inst FEMTOST, F-25044 Besancon, France

来源：

PHYSICAL REVIEW E | 2006年 / 73卷 / 06期

关键词：

D O I：

10.1103/PhysRevE.73.065601

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

A complete surface acoustic wave band gap is found experimentally in a two-dimensional square-lattice piezoelectric phononic crystal etched in lithium niobate. Propagation in the phononic crystal is studied by direct generation and detection of surface waves using interdigital transducers. The complete band gap extends from 203 to 226 MHz, in good agreement with theoretical predictions. Near the upper edge of the complete band gap, it is observed that radiation to the bulk of the substrate dominates. This observation is explained by introducing the concept of the sound line.

引用

页数：4

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