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Remote acoustic cloaks

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Abstract

Due to the correspondence of the acoustic equations to Maxwell’s equations of one polarization in two dimensions, we exploit theoretically the acoustic counterpart of the recently proposed remote invisibility cloak. The cloak consists of a circular cylindrical core with designed bulk moduli, and an “anti-object” embedded inside a shell with anisotropic mass densities. The material parameters of the cloaking shells are obtained by using the coordinate transformation method. The essence of the new design of cloaks relies on the ability that the cloaked object is no longer deafened by the cloaking shell, which is verified by both the far-field and near-field full-wave finite-element simulations in two dimensions.

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Authors and Affiliations

  1. Department of Physics, State Key Laboratory of Surface Physics, and Key Laboratory of Micro and Nano Photonic Structures (Ministry of Education), Fudan University, Shanghai, 200433, China

    Qiang Su  (苏 强), Bin Liu  (刘 斌) & Ji-ping Huang  (黄吉平)

Authors
  1. Qiang Su  (苏 强)
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  2. Bin Liu  (刘 斌)
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  3. Ji-ping Huang  (黄吉平)
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Corresponding author

Correspondence to Ji-ping Huang  (黄吉平).

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Su, Q., Liu, B. & Huang, Jp. Remote acoustic cloaks. Front. Phys. China 6, 65–69 (2011). https://doi.org/10.1007/s11467-010-0147-y

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  • DOI: https://doi.org/10.1007/s11467-010-0147-y

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