| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Approximation Approach of Realizing an Arbitrarily Shaped Acoustic Cloak with Homogeneous Isotropic Materials |
| GAO Dong-Bao, ZENG Xin-Wu** |
College of Optoelectronic Science and Engineering, National University of Defense Technology, Changsha 410073
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| Cite this article: |
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GAO Dong-Bao, ZENG Xin-Wu 2012 Chin. Phys. Lett. 29 114302 |
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Abstract An approximation approach is proposed for realizing an arbitrarily shaped acoustic cloak. Based on the effective medium theory, the designed cloak is a discrete layered structure using homogeneous isotropic materials. The performance of the cloak is simulated, and the results demonstrate that the cloak possesses properties of low-reflection outside the cloak and wavefront-bending in the cloak shell. This work proves the feasibility of realizing an arbitrarily shaped acoustic cloak using normal materials.
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Received: 16 July 2012
Published: 28 November 2012
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| PACS: |
43.35.Bf
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(Ultrasonic velocity, dispersion, scattering, diffraction, and Attenuation in liquids, liquid crystals, suspensions, and emulsions)
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43.20.El
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(Reflection, refraction, diffraction of acoustic waves)
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63.22.Np
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(Layered systems)
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