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Electrically Controlled Liquid Crystal Phase Grating for Terahertz Waves

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5 Author(s)
Chia-Jen Lin ; Dept. of Electrophys., Nat. Chiao Tung Univ., Hsinchu ; Chuan-Hsien Lin ; Yu-Tai Li ; Ru-Pin Pan
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This work demonstrates the feasibility of electrically controlled liquid-crystal-based phase grating for manipulating the terahertz (THz) waves. This device can be utilized as a THz beam splitter and the beam splitting ratio of the zeroth- to the first-order diffractions can be tuned from 10:1 to 1:1.

Published in:

IEEE Photonics Technology Letters  (Volume:21 ,  Issue: 11 )