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).


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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.

Item Type: Article
Digital Object Identifier (DOI): doi:10.1103/PhysRevLett.108.124301
Related URLs:
Subjects: Q Science > QC Physics
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Organisations: Optoelectronics Research Centre
ePrint ID: 337813
Date :
Date Event
23 March 2012Published
Date Deposited: 03 May 2012 14:17
Last Modified: 17 Apr 2017 17:13
Further Information:Google Scholar

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