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Acoustic cloaking in three dimensions using acoustic metamaterials

Appl. Phys. Lett. 91, 183518 (2007); doi:10.1063/1.2803315

Published 2 November 2007

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Huanyang Chen and C. T. Chan
Department of Physics, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China
A scheme to achieve two dimensional (2D) acoustic cloaking is proposed by Cummer and Schurig [New J. Phys. 9, 45 (2007)] by mapping the acoustic equations to Maxwell's equations of one polarization in the 2D geometry. We find that the acoustic equation can be mapped to the direct current conductivity equation in three dimensions, which then allows the design of three-dimensional acoustic cloaking using the coordinate transformation scheme. The perfect cloaking effect is confirmed by solving for the scattering problem using the spherical-Bessel function series expansion method. ©2007 American Institute of Physics
History: Received 18 September 2007; accepted 7 October 2007; published 2 November 2007
Permalink: http://link.aip.org/link/?APPLAB/91/183518/1
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KEYWORDS and PACS

Keywords
PACS
  • 43.20.Fn
    Scattering of linear acoustic waves
  • 03.50.De
    Classical electromagnetism, Maxwell equations
  • 42.70.-a
    Optical materials
  • 02.30.Gp
    Special functions
  • YEAR: 2007

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PUBLICATION DATA

ISSN:
0003-6951 (print)   1077-3118 (online)
Publisher:
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REFERENCES (17)
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