Self-polarizing terahertz liquid crystal phase shifter
Source abstract
Abstract
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.
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Research context
OpenAlex topics: Terahertz technology and applications · Photonic and Optical Devices · Plant and animal studies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Nanjing University 1 College of Engineering and Applied Sciences and National Laboratory of Solid State Microstructures, , Nanjing 210093, P. R. China
Nanjing University 2 Research Institute of Superconductor Electronics (RISE), School of Electronic Science and Engineering, , Nanjing 210093, P. R. China
East China University of Science and Technology 3 Department of Physics, , Shanghai 200237, P. R. China
Funding
National Natural Science Foundation of China
References (20)
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