Concealing a Passive Sensing System with Single-Negative Layers
ZHU Xue-Feng1,2, ZOU Xin-Ye1, ZHOU Xiao-Wei1, LIANG Bin1, CHENG Jian-Chun1**
1Key Laboratory of Modern Acoustics (MOE), Institute of Acoustics, Department of Physics, Nanjing University, Nanjing 210093 2Huazhong University of Science and Technology, Wuhan 430074
Concealing a Passive Sensing System with Single-Negative Layers
ZHU Xue-Feng1,2, ZOU Xin-Ye1, ZHOU Xiao-Wei1, LIANG Bin1, CHENG Jian-Chun1**
1Key Laboratory of Modern Acoustics (MOE), Institute of Acoustics, Department of Physics, Nanjing University, Nanjing 210093 2Huazhong University of Science and Technology, Wuhan 430074
摘要We propose a multi-layer structure for concealing an electromagnetic sensing system (a sensor is wrapped with a transparent protective layer), using single-negative (SNG) materials whose material parameters are completely independent of those of the host matrix as well as the concealed system. The numerical results show that only three different kinds of SNG materials are sufficient to yield the cloaking effect even in the presence of weak loss. This may significantly facilitate the experimental realization of a well-performing sensor-cloaking device.
Abstract：We propose a multi-layer structure for concealing an electromagnetic sensing system (a sensor is wrapped with a transparent protective layer), using single-negative (SNG) materials whose material parameters are completely independent of those of the host matrix as well as the concealed system. The numerical results show that only three different kinds of SNG materials are sufficient to yield the cloaking effect even in the presence of weak loss. This may significantly facilitate the experimental realization of a well-performing sensor-cloaking device.
[1] Pendry J B, Schurig D and Smith D R 2006 Science 312 1780 [2] Schurig D, Mock J J, Justice B J, Cummer S A, Pendry J B, Starr A F and Smith D R 2006 Science 314 977 [3] Popa B I and Cummer S A 2009 Phys. Rev. A 79 023806 [4] Cai W, Chettiar U K, Kildishev A V and Shalaev V M 2007 Nature Photon. 1 224 [5] Yu G X, Jiang W X and Cui T J 2009 Appl. Phys. Lett. 94 041904 [6] Zhang J J, Luo Y and Mortensen N A 2010 Appl. Phys. Lett. 96 113511 [7] Chen X Z, Luo Y, Zhang J J, Jiang K, Pendry J B and Zhang S 2011 Nature Commun. 2 176 [8] Alù A and Engheta N 2009 Phys. Rev. Lett. 102 233901 [9] Lai Y, Chen H Y, Zhang Z Q and Chan C T 2009 Phys. Rev. Lett. 102 093901 [10] Zhang L W, Zhang Y W, He L, Li H Q and Chen H 2006 Phys. Rev. E 74 056615 [11] Alù A and Engheta N 2003 IEEE Trans. Antennas Propagat. 51 2558 [12] Zhu X F, Liang B, Kan W W, Zou X Y and Cheng J C 2011 Phys. Rev. Lett. 106 014301
2012, Vol. 29 
