Liquid crystal programmable metasurface for terahertz beam steering

Jingbo Wu(Nanjing University), Zexiang Shen(Collaborative Innovation Center of Advanced Microstructures), Shi‐Jun Ge(Collaborative Innovation Center of Advanced Microstructures), Benwen Chen(Nanjing University), Zhixiong Shen(Collaborative Innovation Center of Advanced Microstructures), Taofeng Wang(Nanjing University), Caihong Zhang(Nanjing University), Wei Hu(Collaborative Innovation Center of Advanced Microstructures), Kebin Fan(Duke University), Willie Padilla(Duke University), Yanqing Lu(Collaborative Innovation Center of Advanced Microstructures), Biaobing Jin(Nanjing University), Jian Chen(Nanjing University), Peiheng Wu(Nanjing University)
Applied Physics Letters
March 30, 2020
Cited by 295

Abstract

The coding metasurface integrated with tunable materials offers an attractive alternative to manipulate the THz beam dynamically. In this work, we demonstrate a THz programmable metasurface based on liquid crystal. The phase profile on the metasurface could be dynamically manipulated by switching the “0” and “1” states of each element. The programmable metasurface could deflect the THz beam using the designed coding sequence, and a maximum deflection angle of 32° has been achieved. The presented design opens a route of beamforming for THz communication.


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