Self-polarizing terahertz liquid crystal phase shifter

Xiao-wen Lin; Jing-bo Wu; Wei Hu; Zhi-gang Zheng; Zi-jian Wu; Ge Zhu; Fei Xu; Biao-bing Jin; Yan-qing Lu

doi:10.1063/1.3626560

AIP Advances (Sep 2011)

Self-polarizing terahertz liquid crystal phase shifter

Xiao-wen Lin,
Jing-bo Wu,
Wei Hu,
Zhi-gang Zheng,
Zi-jian Wu,
Ge Zhu,
Fei Xu,
Biao-bing Jin,
Yan-qing Lu

Affiliations

Xiao-wen Lin: College of Engineering and Applied Sciences and National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, P. R. China
Jing-bo Wu: Research Institute of Superconductor Electronics (RISE), School of Electronic Science and Engineering, Nanjing University, Nanjing 210093, P. R. China
Wei Hu: College of Engineering and Applied Sciences and National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, P. R. China
Zhi-gang Zheng: College of Engineering and Applied Sciences and National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, P. R. China
Zi-jian Wu: College of Engineering and Applied Sciences and National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, P. R. China
Ge Zhu: College of Engineering and Applied Sciences and National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, P. R. China
Fei Xu: College of Engineering and Applied Sciences and National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, P. R. China
Biao-bing Jin: Research Institute of Superconductor Electronics (RISE), School of Electronic Science and Engineering, Nanjing University, Nanjing 210093, P. R. China
Yan-qing Lu: College of Engineering and Applied Sciences and National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, P. R. China

DOI: https://doi.org/10.1063/1.3626560
Journal volume & issue: Vol. 1, no. 3
pp. 032133 – 032133-6

Abstract

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Using sub-wavelength metallic gratings as both transparent electrodes and broadband high-efficiency polarizers, a highly-compact self-polarizing phase shifter is demonstrated by electrically tuning the effective birefringence of a nematic liquid crystal cell. The metal grating polarizers ensure a good polarizing efficiency in the range of 0.2 to 2 THz. Phase shift of more than π/3 is achieved in a 256 μm-thick cell with a saturation root mean square voltage of around 130 V in this integrated device.

Published in AIP Advances

ISSN: 2158-3226 (Online)
Publisher: AIP Publishing LLC
Country of publisher: United States
LCC subjects: Science: Physics
Website: http://aipadvances.aip.org/

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