Acoustic Cloaking by a Superlens with Single-Negative Materials

[huzihaidao12]

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, People’s 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

*[email protected]

†[email protected]