Direct current remote cloak for arbitrary objects

Tianhang Chen; Bin Zheng; Yihao Yang; Lian Shen; Zuojia Wang; Fei Gao; Erping Li; Yu Luo; Tie Jun Cui; Hongsheng Chen

doi:10.1038/s41377-019-0141-2

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Direct current remote cloak for arbitrary objects

Letters

- Direct current remote cloak for arbitrary objects
- Light: Science & Applications Vol. 8, Issue 2, Pages: 231-236(2019)
- Affiliations：
  
  1.Key Laboratory of Micro-Nano Electronics and Smart Systems of Zhejiang Province, College of Information Science and Electronic Engineering, Zhejiang University, 310027, Hangzhou, China
  2.State Key Laboratory of Modern Optical Instrumentation and The Electromagnetics Academy at Zhejiang University, Zhejiang University, 310027, Hangzhou, China
  3.School of Electrical & Electronic Engineering, Nanyang Technological University, Singapore, 637371, Singapore
  4.State Key Laboratory of Millimeter Waves, Department of Radio Engineering, Southeast University, 210096, Nanjing, China
- Author bio：
  
  Bin Zheng (zhengbin@zju.edu.cn)
  Yihao Yang (yangyihaooo@zju.edu.cn)
  Hongsheng Chen (hansomchen@zju.edu.cn)
- Funds：
- DOI：10.1038/s41377-019-0141-2
  CLC：
- Published：2019，
  
  Published Online：13 March 2019，
  
  Received：13 October 2018，
  
  Revised：14 February 2019，
  
  Accepted：18 February 2019
- Accepted：
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Chen, T. H. et al. Direct current remote cloak for arbitrary objects. Light: Science & Applications, 8, 231-236 (2019).
DOI：

Chen, T. H. et al. Direct current remote cloak for arbitrary objects. Light: Science & Applications, 8, 231-236 (2019). DOI： 10.1038/s41377-019-0141-2.

摘要

Abstract

Hiding an arbitrary object with a cloak at a distance from an object is of great significance in scientific research

but remains unrealized as a practical device. In this paper

we propose the first experimental realization of a remote cloaking device that makes any object located at a certain distance invisible at direct current (DC) frequency. A negative resistor network with active elements is used to achieve the remote function of the DC cloak. Based on this network

the cloak can remotely generate a hidden region without distorting the currents far from the cloaked region. The experimental results show that any object in the hidden region is invisible to a DC detector. Our cloak does not require any knowledge of the hidden object. The experimental demonstration shows the superiority of this remote cloaking device

which may find potential applications in medical or geologic research.

关键词

Keywords

references

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