Original Articles |
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Impedance-Matched Reduced Acoustic Cloaking with Realizable Mass and Its Layered Design |
CHEN Huan-Yang, YANG Tao, LUO Xu-Dong, MA Hong-Ru |
Institute of Theoretical Physics, Shanghai Jiao Tong University, Shanghai 200240 |
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Cite this article: |
CHEN Huan-Yang, YANG Tao, LUO Xu-Dong et al 2008 Chin. Phys. Lett. 25 3696-3699 |
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Abstract We present an impedance-matched reduced version of acoustic cloaking whose mass is in a reasonable range. A layered cloak design with isotropic material is also proposed for the reduced cloak. Numerical calculations from the transfer matrix methods show that the present layered cloak can reduce the scattering of an air cylinder substantially.
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Keywords:
43.20.+g
43.35.+d
43.40.+s
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Received: 11 June 2008
Published: 26 September 2008
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PACS: |
43.20.+g
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(General linear acoustics)
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43.35.+d
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(Ultrasonics, quantum acoustics, and physical effects of sound)
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43.40.+s
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(Structural acoustics and vibration)
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