期刊论文详细信息
JOURNAL OF DIFFERENTIAL EQUATIONS 卷:254
On near-cloak in acoustic scattering
Article
Liu, Hongyu
关键词: Inverse acoustic scattering;    Invisibility cloaking;    Transformation optics;    Lossy layer;    Regularization;    Asymptotic estimates;   
DOI  :  10.1016/j.jde.2012.10.015
来源: Elsevier
PDF
【 摘 要 】

Invisibility cloaking in acoustic scattering via the approach of transformation optics is considered. The near-cloaks of both passive medium and active/radiating object are investigated. From a practical viewpoint, we are especially interested in the cloaking of an arbitrary (but regular) content. It is shown that one cannot achieve the near-cloak unless some special mechanism is introduced into the construction. A general lossy layer is incorporated into the construction of our near-cloaking devices. We derive very accurate estimates of the scattering amplitude in terms of the regularization parameter and the material parameters of the lossy layer in different settings. (C) 2012 Elsevier Inc. All rights reserved.

【 授权许可】

Free   

【 预 览 】
附件列表
Files Size Format View
10_1016_j_jde_2012_10_015.pdf 244KB PDF download
  文献评价指标  
  下载次数:3次 浏览次数:0次