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Applied Physics Letters / Volume 98 / Issue 12 / STRUCTURAL, MECHANICAL, THERMODYNAMIC, AND OPTICAL PROPERTIES OF CONDENSED MATTER

Appl. Phys. Lett. 98, 121904 (2011); http://dx.doi.org/10.1063/1.3569598 (3 pages)

Controlling elastic waves with isotropic materials

Zheng Chang1, Jin Hu2, Gengkai Hu1, Ran Tao2, and Yue Wang2

1School of Aerospace Engineering, Beijing Institute of Technology, 100081 Beijing, China
2School of Information and Electronics, Beijing Institute of Technology, 100081 Beijing, China

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(Received 24 November 2010; accepted 2 March 2011; published online 21 March 2011)

Design of functional devices with isotropic materials has significant advantages, as regards easy fabrication and broadband application. In this letter, we present a method to derive isotropic transformation material parameters for elastodynamics under local conformal transformation. The transformed material parameters are then applied to design a beam bender, a four-beam antenna and an approximate carpet cloak for elastic wave with isotropic materials, validated by the numerical simulations.

© 2011 American Institute of Physics

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KEYWORDS and PACS

Keywords

elastic waves, elastodynamics, numerical analysis

PACS

  • 62.30.+d

    Mechanical and elastic waves; vibrations

  • 02.60.-x

    Numerical approximation and analysis

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3569598

PUBLICATION DATA

ISSN

0003-6951 (print)  
1077-3118 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

For access to fully linked references, you need to log in.
    H. Chen and C. T. Chan, Appl. Phys. Lett. 91, 183518 (2007)APPLAB000091000018183518000001.

    S. Zhang, C. Xia, and N. Fang, Phys. Rev. Lett. 106, 024301 (2011).

    J. Li and C. T. Chan, Phys. Rev. E 70, 055602 (2004).

    X. M. Zhou and G. K. Hu, Phys. Rev. B 79, 195109 (2009).

    J. Li and J. B. Pendry, Phys. Rev. Lett. 101, 203901 (2008).

    M. Schmiele, V. S. Varma, C. Rockstuhl, and F. Lederer, Phys. Rev. A 81, 033837 (2010).

    C. Ren, Z. Xiang, and Z. Cen, Appl. Phys. Lett. 97, 044101 (2010)APPLAB000097000004044101000001.


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