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Anisotropic metamaterials for full control of acoustic waves

Christensen, Johan and García de Abajo, F. (2012) Anisotropic metamaterials for full control of acoustic waves Physical Review Letters, 108, (12), 124301-[5 pages]. (doi:10.1103/PhysRevLett.108.124301).

Record type: Article


We study a class of acoustic metamaterials formed by layers of perforated plates and producing negative refraction and backward propagation of sound. A slab of such material is shown to act as a perfect acoustic lens, yielding images with subwavelength resolution over large distances. Our study constitutes a nontrivial extension of similar concepts from optics to acoustics, capable of sustaining negative refraction over extended angular ranges, with potential application to enhanced imaging for medical and detection purposes, acoustofluidics, and sonochemistry.

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Published date: 23 March 2012
Organisations: Optoelectronics Research Centre


Local EPrints ID: 337813
PURE UUID: 8a266338-c1c9-4d6f-9bc4-348b7b8180bb

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Date deposited: 03 May 2012 14:17
Last modified: 18 Jul 2017 06:01

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Author: Johan Christensen
Author: F. García de Abajo

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