Real-time programmable metasurface for terahertz multifunctional wave front engineering

Feng Lan; Luyang Wang; Hongxin Zeng; Shixiong Liang; Tianyang Song; Wenxin Liu; Pinaki Mazumder; Ziqiang Yang; Yaxin Zhang; Daniel M. Mittleman

doi:10.1038/s41377-023-01228-w

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Real-time programmable metasurface for terahertz multifunctional wave front engineering

Original Articles

- Real-time programmable metasurface for terahertz multifunctional wave front engineering
- Light: Science & Applications Vol. 12, Issue 9, Pages: 1795-1806(2023)
- Affiliations：
  
  1.Sichuan THz Communication Technology Engineering Research Center, School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China
  2.Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou 313000, China
  3.Zhangjiang Laboratory, Shanghai 201204, China
  4.National Key Laboratory of Solid-State Microwave Devices and Circuits, Hebei Semiconductor Research Institute, Shijiazhuang 050051, China
  5.Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100094, China
  6.University of Chinese Academy of Sciences, School of Electronic, Electrical and Communication Engineering, Beijing 101408, China
  7.Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, MI 48109, USA
  8.School of Engineering, Brown University, Providence, RI 02912, USA
- Author bio：
  
  Hongxin Zeng (zenghx@uestc.edu.cn)
  Yaxin Zhang (zhangyaxin@uestc.edu.cn)
  Daniel M. Mittleman (daniel_mittleman@brown.edu)
- Funds：
- DOI：10.1038/s41377-023-01228-w
  CLC：
- Published：30 September 2023，
  
  Published Online：07 August 2023，
  
  Received：09 February 2023，
  
  Revised：03 July 2023，
  
  Accepted：11 July 2023
- Accepted：
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Lan, F. et al. Real-time programmable metasurface for terahertz multifunctional wave front engineering. Light: Science & Applications, 12, 1795-1806 (2023).
DOI：

Lan, F. et al. Real-time programmable metasurface for terahertz multifunctional wave front engineering. Light: Science & Applications, 12, 1795-1806 (2023). DOI： 10.1038/s41377-023-01228-w.

摘要

Abstract

Terahertz (THz) technologies have become a focus of research in recent years due to their prominent role in envisioned future communication and sensing systems. One of the key challenges facing the field is the need for tools to enable agile engineering of THz wave fronts. Here

we describe a reconfigurable metasurface based on GaN technology with an array-of-subarrays architecture. This subwavelength-spaced array

under the control of a 1-bit digital coding sequence

can switch between an enormous range of possible configurations

providing facile access to nearly arbitrary wave front control for signals near 0.34 THz. We demonstrate wide-angle beam scanning with 1° of angular precision over 70 GHz of bandwidth

as well as the generation of multi-beam and diffuse wave fronts

with a switching speed up to 100 MHz. This device

offering the ability to rapidly reconfigure a propagating wave front for beam-forming or diffusively scattered wide-angle coverage of a scene

will open new realms of possibilities in sensing

imaging

and networking.

关键词

Keywords

references

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