A hybrid invisibility cloak based on integration of transparent metasurfaces and zero-index materials

Hongchen Chu; Qi Li; Bingbing Liu; Jie Luo; Shulin Sun; Zhi Hong Hang; Lei Zhou; Yun Lai

doi:10.1038/s41377-018-0052-7

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A hybrid invisibility cloak based on integration of transparent metasurfaces and zero-index materials

Original Articles

- A hybrid invisibility cloak based on integration of transparent metasurfaces and zero-index materials
- Light: Science & Applications Vol. 7, Issue 5, Pages: 507-514(2018)
- Affiliations：
  
  1.School of Physical Science and Technology and Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, 215006, Suzhou, China
  2.State Key Laboratory of Surface Physics and Key Laboratory of Micro and Nano Photonic Structures (Ministry of Education), Fudan University, 200433, Shanghai, China
  3.Collaborative Innovation Center of Advanced Microstructures, 210093, Nanjing, China
  4.Shanghai Engineering Research Center of Ultra-Precision Optical Manufacturing, Green Photonics and Department of Optical Science and Engineering, Fudan University, 200433, Shanghai, China
  5.State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, 130033, Changchun, China
  6.National Laboratory of Solid State Microstructures, School of Physics, Nanjing University, 210093, Nanjing, China
- Author bio：
  
  Shulin Sun (sls@fudan.edu.cn)
  Zhi Hong Hang (zhhang@suda.edu.cn)
  Yun Lai (laiyun@nju.edu.cn)
- Funds：
- DOI：10.1038/s41377-018-0052-7
  CLC：
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Chu, H. C. et al. A hybrid invisibility cloak based on integration of transparent metasurfaces and zero-index materials. Light: Science & Applications, 5, 507-514 (2018).
DOI：

Chu, H. C. et al. A hybrid invisibility cloak based on integration of transparent metasurfaces and zero-index materials. Light: Science & Applications, 5, 507-514 (2018). DOI： 10.1038/s41377-018-0052-7.

摘要

Abstract

The invisibility cloak, a long-standing fantastic dream for humans, has become more tangible with the development of metamaterials. Recently, metasurface-based invisibility cloaks have been proposed and realized with significantly reduced thickness and complexity of the cloaking shell. However, the previous scheme is based on reflection-type metasurfaces and is thus limited to reflection geometry. In this work, by integrating the wavefront tailoring functionality of transparent metasurfaces and the wave tunneling functionality of zero-index materials, we have realized a unique type of hybrid invisibility cloak that functions in transmission geometry. The principle is general and applicable to arbitrary shapes. For experimental demonstration, we constructed a rhombic double-layer cloaking shell composed of a highly transparent metasurface and a double-zero medium consisting of dielectric photonic crystals with Dirac cone dispersions. The cloaking effect is verified by both full-wave simulations and microwave experimental results. The principle also reveals exciting possibilities for realizing skin-thick ultrathin cloaking shells in transmission geometry, which can eliminate the need for spatially varying extreme parameters. Our work paves a path for novel optical and electromagnetic devices based on the integration of metasurfaces and metamaterials.

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references

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