Three-dimensional magnetic cloak working from d.c. to 250 kHz

被引：68

作者：

Zhu, Jianfei ^{[1
]}

Jiang, Wei ^{[1
]}

Liu, Yichao ^{[1
]}

Yin, Ge ^{[1
]}

Yuan, Jun ^{[1
]}

He, Sailing ^{[1
,2
,3
]}

Ma, Yungui ^{[1
]}

机构：

[1] Zhejiang Univ, Coll Opt Sci & Engn, Ctr Opt & Electromagnet Res, State Key Lab Modern Opt Instrumentat, Hangzhou 310058, Zhejiang, Peoples R China

[2] Royal Inst Technol, Sch Elect Engn, Dept Electromagnet Engn, S-10044 Stockholm, Sweden

[3] S China Normal Univ, South China Acad Adv Optoelect, ZJU SCNU Joint Res Ctr Photon, Guangzhou 510006, Guangdong, Peoples R China

来源：

NATURE COMMUNICATIONS | 2015年 / 6卷

关键词：

INVISIBILITY CLOAKING; YBA2CU3O6.95; OPTICS;

D O I：

10.1038/ncomms9931

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Invisible cloaking is one of the major outcomes of the metamaterial research, but the practical potential, in particular for high frequencies (for example, microwave to visible light), is fatally challenged by the complex material properties they usually demand. On the other hand, it will be advantageous and also technologically instrumental to design cloaking devices for applications at low frequencies where electromagnetic components are favourably uncoupled. In this work, we vastly develop the bilayer approach to create a three-dimensional magnetic cloak able to work in both static and dynamic fields. Under the quasi-static approximation, we demonstrate a perfect magnetic cloaking device with a large frequency band from 0 to 250 kHz. The practical potential of our device is experimentally verified by using a commercial metal detector, which may lead us to having a real cloaking application where the dynamic magnetic field can be manipulated in desired ways.

引用

页数：8

共 48 条

[1]

Alu A., 2005, PHYS REV E, V72, P275

[2] Quasi-magneto static solution for a conducting and permeable spheroid with arbitrary excitation [J].

Ao, CO ;

Braunisch, H ;

O'Neill, K ;

Kong, JA .

IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, 2002, 40 (04) :887-897

[3] Low loss Z-type barium ferrite (Co2Z) for terrestrial digital multimedia broadcasting antenna application [J].

Bae, S. ;

Hong, Y. K. ;

Lee, J. J. ;

Jalli, J. ;

Abo, G. S. ;

Lyle, A. ;

Seong, W. M. ;

Kum, J. S. .

JOURNAL OF APPLIED PHYSICS, 2009, 105 (07)

[4]

Bell T.H., 2001, Subsurface Sens. Tech. Appl, V2, P153, DOI DOI 10.1023/A:1011978305379

[5] Optical cloaking with metamaterials [J].

Cai, Wenshan ;

Chettiar, Uday K. ;

Kildishev, Alexander V. ;

Shalaev, Vladimir M. .

NATURE PHOTONICS, 2007, 1 (04) :224-227

[6] Ray-optics cloaking devices for large objects in incoherent natural light [J].

Chen, Hongsheng ;

Zheng, Bin ;

Shen, Lian ;

Wang, Huaping ;

Zhang, Xianmin ;

Zheludev, Nikolay I. ;

Zhang, Baile .

NATURE COMMUNICATIONS, 2013, 4

[7]

Chen HY, 2010, NAT MATER, V9, P387, DOI [10.1038/NMAT2743, 10.1038/nmat2743]

[8] Design and Experimental Realization of a Broadband Transformation Media Field Rotator at Microwave Frequencies [J].

Chen, Huanyang ;

Hou, Bo ;

Chen, Shuyu ;

Ao, Xianyu ;

Wen, Weijia ;

Chan, C. T. .

PHYSICAL REVIEW LETTERS, 2009, 102 (18)

[9] Macroscopic invisibility cloaking of visible light [J].

Chen, Xianzhong ;

Luo, Yu ;

Zhang, Jingjing ;

Jiang, Kyle ;

Pendry, John B. ;

Zhang, Shuang .

NATURE COMMUNICATIONS, 2011, 2

[10] Three-Dimensional Invisibility Cloak at Optical Wavelengths [J].

Ergin, Tolga ;

Stenger, Nicolas ;

Brenner, Patrice ;

Pendry, John B. ;

Wegener, Martin .

SCIENCE, 2010, 328 (5976) :337-339

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