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Journal of Applied Physics : Specific multiple-scattering process in acoustic cloak with multilayered homogeneous isotropic materials

By Ying Cheng and XiaoJun Liu

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Book Id: WPLBN0002169472
Format Type: PDF eBook :
File Size: Serial Publication
Reproduction Date: 21 November 2008

Title: Journal of Applied Physics : Specific multiple-scattering process in acoustic cloak with multilayered homogeneous isotropic materials  
Author: Ying Cheng and XiaoJun Liu
Volume: Issue : November 2008
Language: English
Subject: Science, Physics, Natural Science
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Journal of Applied Physics Collection
Historic
Publication Date:
Publisher: American Institute of Physics

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And Xiaojun Liu, Y. C. (n.d.). Journal of Applied Physics : Specific multiple-scattering process in acoustic cloak with multilayered homogeneous isotropic materials. Retrieved from http://hawaiilibrary.net/


Description
Description: It was qualitatively demonstrated through finite-element full-wave simulations that acoustic cloak can be constructed by using concentric multilayered structure with alternating homogeneous isotropic materials [ Y. Cheng et al., Appl. Phys. Lett. 92, 151913 (2008) ]. Here we present a sequential in-depth analysis of the proposed cloak by means of the multiple-scattering algorithms. Calculated pressure fields demonstrate that the cloak possesses low-reflection and wavefront-bending properties. The scattering patterns further characterize the directional cloaking performance in the far field, which is consistent with the pressure fields. The mechanism of the cloaking is ascribed to a specific multiple-scattering process determined by the microscopic material distribution and structural details of the cloak. We also discuss the behavior of the multilayered cloak as a function of wavelength.

 

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