Electrically Controlled Liquid Crystal Phase Grating for Terahertz Waves

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:...

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Veröffentlicht in:	IEEE photonics technology letters 2009-06, Vol.21 (11), p.730-732
Hauptverfasser:	Lin, Chia-Jen, Lin, Chuan-Hsien, Li, Yu-Tai, Pan, Ru-Pin, Pan, Ci-Ling
Format:	Artikel
Sprache:	eng
Schlagworte:	Beam splitters Beams (radiation) Devices Diffraction Electromagnetic scattering Feasibility Filters Gratings Liquid crystal devices Liquid crystals Magnetic separation phase grating Photonics Refractive index Silicon compounds Splitting submillimeter wave Submillimeter wave technology terahertz (THz) radiation Tunable circuits and devices ultrafast optics
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Beschreibung
Zusammenfassung:	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.
ISSN:	1041-1135 1941-0174
DOI:	10.1109/LPT.2009.2017382