Acoustic transparency in two-dimensional sonic crystals

被引：8
|
作者：
Sanchez-Dehesa, Jose [1 ]
Torrent, Daniel [1 ]
Cai, Liang-Wu [2 ]
机构：
[1] Univ Politecn Valencia, Dept Elect Engn, Wave Phenomena Grp, E-46022 Valencia, Spain
[2] Kansas State Univ, Dept Mech & Nucl Engn, Manhattan, KS 66506 USA
来源：
NEW JOURNAL OF PHYSICS | 2009年 / 11卷
基金：
美国国家科学基金会;
关键词：
SCATTERING;
D O I：
10.1088/1367-2630/11/1/013039
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Acoustic transparency is studied in two-dimensional sonic crystals consisting of hexagonal distributions of cylinders with continuously varying properties. The transparency condition is achieved by selectively closing the acoustic bandgaps, which are governed by the structure factor of the cylindrical scatterers. It is shown here that cylindrical scatterers with the proposed continuously varying properties are physically realizable by using metafluids based on sonic crystals. The feasibility of this proposal is analyzed by a numerical experiment based on multiple scattering theory.
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收藏
页数：12
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