Smart metasurface with self-adaptively reprogrammable functions

Qian Ma; Guo Dong Bai; Hong Bo Jing; Cheng Yang; Lianlin Li; Tie Jun Cui

doi:10.1038/s41377-019-0205-3

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Smart metasurface with self-adaptively reprogrammable functions

Article

- Smart metasurface with self-adaptively reprogrammable functions
- Light: Science & Applications Vol. 8, Issue 6, Pages: 978-989(2019)
- Affiliations：
  
  1.State Key Laboratory of Millimeter Wave, Southeast University, 210096 Nanjing, China
  2.Jiangsu Cyber-Space Science & Technology Co., Ltd., 12 Mozhou East Road, 211111 Nanjing, China
  3.State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronics, Peking University, 100871 Beijing, China
- Author bio：
  
  Tie Jun Cui (tjcui@seu.edu.cn)
- Funds：
- DOI：10.1038/s41377-019-0205-3
  CLC：
- Published：2019，
  
  Published Online：31 October 2019，
  
  Received：10 May 2019，
  
  Revised：26 September 2019，
  
  Accepted：02 October 2019
- Accepted：
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Ma, Q. et al. Smart metasurface with self-adaptively reprogrammable functions. Light: Science & Applications, 8, 978-989 (2019).
DOI：

Ma, Q. et al. Smart metasurface with self-adaptively reprogrammable functions. Light: Science & Applications, 8, 978-989 (2019). DOI： 10.1038/s41377-019-0205-3.

摘要

Abstract

Intelligence at either the material or metamaterial level is a goal that researchers have been pursuing. From passive to active

metasurfaces have been developed to be programmable to dynamically and arbitrarily manipulate electromagnetic (EM) wavefields. However

the programmable metasurfaces require manual control to switch among different functionalities. Here

we put forth a smart metasurface that has self-adaptively reprogrammable functionalities without human participation. The smart metasurface is capable of sensing ambient environments by integrating an additional sensor(s) and can adaptively adjust its EM operational functionality through an unmanned sensing feedback system. As an illustrative example

we experimentally develop a motion-sensitive smart metasurface integrated with a three-axis gyroscope

which can adjust self-adaptively the EM radiation beams via different rotations of the metasurface. We develop an online feedback algorithm as the control software to make the smart metasurface achieve single-beam and multibeam steering and other dynamic reactions adaptively. The proposed metasurface is extendable to other physical sensors to detect the humidity

temperature

illuminating light

and so on. Our strategy will open up a new avenue for future unmanned devices that are consistent with the ambient environment.

关键词

Keywords

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