Electrically controlled terahertz wave switch based on prism/liquid crystal

Meng-yao He; Jian-rong Hu; Jiu-sheng Li

doi:10.1117/12.2247128

3 November 2016 Electrically controlled terahertz wave switch based on prism/liquid crystal

Meng-yao He, Jian-rong Hu, Jiu-sheng Li

Proceedings Volume 10030, Infrared, Millimeter-Wave, and Terahertz Technologies IV; 100302L (2016) https://doi.org/10.1117/12.2247128
Event: SPIE/COS Photonics Asia, 2016, Beijing, China

Abstract

We proposed a simple scheme to manipulate the position of the reflected terahertz wave beam based on the prism/liquid crystal structure. Both the stationary-phase method and finite element method are used to analyze and simulate the characteristics of the proposed device. To give comprehensive understanding, the position of the reflected terahertz wave beam is verified in simulation by using the COMSOL Multiphysics software. Numerical calculation results show that the proposed terahertz wave switch a high extinction ratio (35dB for TE polarization and 30dB for TM polarization). This provides an attractive way for creating a simple structure and compact size terahertz wave switch with acceptable extinction ratio.

Citation Download Citation

Meng-yao He, Jian-rong Hu, and Jiu-sheng Li "Electrically controlled terahertz wave switch based on prism/liquid crystal", Proc. SPIE 10030, Infrared, Millimeter-Wave, and Terahertz Technologies IV, 100302L (3 November 2016); https://doi.org/10.1117/12.2247128

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