Ultrasonic surface waves above a doubly periodic grating

被引:9
|
作者
Allard, JF
Kelders, L
Lauriks, W
机构
[1] Univ Maine, Inst Acoust & Mecan, CNRS, UMR 6613, F-72085 Le Mans 9, France
[2] Katholieke Univ Leuven, Lab Akoestiek Therm Fys, B-3001 Heverlee, Belgium
来源
关键词
D O I
10.1121/1.426855
中图分类号
O42 [声学];
学科分类号
070206 ; 082403 ;
摘要
Ultrasonic surface waves above a layer indented by a doubly periodic set of holes having a square-shaped cross section are studied experimentally. Measurements are compared with predictions obtained from a modal model inspired by the theory of the diffraction of electromagnetic waves. Predictions obtained with the modal model and a simplified model where the periodic structure is replaced by an impedance plane are compared. (C) 1999 Acoustical Society of American, [S0001-4966(99)04603-2].
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页码:2528 / 2531
页数:4
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