Title :
Electrically Controlled Liquid Crystal Phase Grating for Terahertz Waves
Author :
Lin, Chia-Jen ; Lin, Chuan-Hsien ; Li, Yu-Tai ; Pan, Ru-Pin ; Pan, Ci-Ling
Author_Institution :
Dept. of Electrophys., Nat. Chiao Tung Univ., Hsinchu
fDate :
6/1/2009 12:00:00 AM
Abstract :
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.
Keywords :
diffraction gratings; liquid crystal devices; microwave photonics; optical beam splitters; optical tuning; terahertz wave devices; electrically controlled grating; first-order diffraction; liquid crystal phase grating; terahertz beam splitter; terahertz wave manipulation; zero-order diffraction; Liquid crystal devices; phase grating; submillimeter wave; terahertz (THz) radiation; tunable circuits and devices; ultrafast optics;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2009.2017382
