Sound focusing by gradient index sonic lenses

被引：186
|
作者：
Climente, Alfonso [1 ]
Torrent, Daniel [1 ]
Sanchez-Dehesa, Jose [1 ]
机构：
[1] Univ Politecn Valencia, Dept Ingn Elect, Grp Fenomenos Ondulatorios, E-46022 Valencia, Spain
来源：
APPLIED PHYSICS LETTERS | 2010年 / 97卷 / 10期
关键词：
All Open Access; Green;
D O I：
10.1063/1.3488349
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Gradient index sonic lenses based on two-dimensional sonic crystals are here designed, fabricated, and characterized. The index-gradient is achieved in these type of flat lenses by a gradual modification of the sonic crystal filling fraction along the direction perpendicular to the lens axis. The focusing performance is well described by an analytical model based on ray theory as well as by numerical simulations based on the multiple-scattering theory. (c) 2010 American Institute of Physics. [doi:10.1063/1.3488349]
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页数：3
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