Terahertz Tunable Devices Based on Liquid Crystal

被引：0
作者：
Ji Y. [1 ]
Fan F. [1 ,3 ]
Yu J. [1 ]
Xu S. [1 ]
Cheng J. [1 ]
Wang X. [1 ]
Chang S. [1 ,2 ]
机构：
[1] Institute of Modern Optics, Nankai University, Tianjin
[2] Tianjin Key Laboratory of Optoelectronic Sensor and Sensing Network Technology, Tianjin
[3] State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, 130033, Jilin
来源：
Zhongguo Jiguang/Chinese Journal of Lasers | 2019年 / 46卷 / 06期
关键词：
Graphene; Liquid crystal devices; Metamaterials; Photonic crystals; Terahertz technology;
D O I：
10.3788/CJL201946.0614006
中图分类号：
学科分类号：
摘要：
This study aims to introduce the optical anisotropy and modulation characteristics of different liquid crystal materials in the terahertz (THz) regime. Herein, several THz functional devices were reviewed based on the combination of liquid crystals and artificial electromagnetic microstructures, realizing the functions, such as tunable filtering, electromagnetic induced transparency, phase modulation, and polarization control of THz waves. Moreover, the interaction mechanism between liquid crystals and artificial electromagnetic microstructures was analyzed and discussed, along with the regulation law of external field and surface interaction at the THz wavelength scale. In addition, the development trend in the applications of THz liquid crystal photonic devices was prospected. © 2019, Chinese Lasers Press. All right reserved.
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