huzihaidao12
SENIOR MEMBER
- Joined
- Feb 1, 2010
- Messages
- 3,043
- Reaction score
- 1
- Country
- Location
Phys. Rev. Lett. 106, 014301 (2011): Acoustic Cloaking by a Superlens with Single-Negative Materials
Xuefeng Zhu, Bin Liang*, Weiwei Kan, Xinye Zou, and Jianchun Cheng
Key Laboratory of Modern Acoustics, MOE, Institute of Acoustics, Department of Physics, Nanjing University, Nanjing 210093, Peoples Republic of China
Received 9 August 2010; revised 10 December 2010; published 4 January 2011
We propose a specific transformation in cloaking to make an acoustic sensor undetectable, in which the cloaking shell consists of complementary media with single-negative acoustic parameters instead of double-negative ones, and is proved to be a magnifying superlens. Moreover, the acoustical parameters of the cloak are completely independent of those of the host material as well as the cloaked object. This may significantly facilitate the experimental realization of acoustic cloaks and is of fundamental importance in a wide range of acoustics, optics, and engineering applications.
© 2011 The American Physical Society
URL:http://link.aps.org/doi/10.1103/Phy...I:10.1103/PhysRevLett.106.014301PACS:43.20.+g
*liangbin@nju.edu.cn
jccheng@nju.edu.cn
Xuefeng Zhu, Bin Liang*, Weiwei Kan, Xinye Zou, and Jianchun Cheng
Key Laboratory of Modern Acoustics, MOE, Institute of Acoustics, Department of Physics, Nanjing University, Nanjing 210093, Peoples Republic of China
Received 9 August 2010; revised 10 December 2010; published 4 January 2011
We propose a specific transformation in cloaking to make an acoustic sensor undetectable, in which the cloaking shell consists of complementary media with single-negative acoustic parameters instead of double-negative ones, and is proved to be a magnifying superlens. Moreover, the acoustical parameters of the cloak are completely independent of those of the host material as well as the cloaked object. This may significantly facilitate the experimental realization of acoustic cloaks and is of fundamental importance in a wide range of acoustics, optics, and engineering applications.
© 2011 The American Physical Society
URL:http://link.aps.org/doi/10.1103/Phy...I:10.1103/PhysRevLett.106.014301PACS:43.20.+g
*liangbin@nju.edu.cn
jccheng@nju.edu.cn
