Electromagnetic field sensing using liquid crystal optical fibers

Author

Byoungho Lee ; Yoonchan Jeong ; Seungin Baek ; Hak-Rin Kim ; Yonghyun Kim ; Yong Wook Lee ; Sin-Doo Lee

Author_Institution

Sch. of Electr. Eng., Seoul Nat. Univ., South Korea

fYear

2002

Firstpage

403

Abstract

Liquid crystal optical fibers are tested for the use of electric voltage sensing. The transmission or reflection characteristics of the sensor heads depend on the environmental electromagnetic fields due to the directional change of the liquid crystal molecules. Not only the conventional nematic but also polymer-dispersed liquid crystals are tested.

Keywords

electric field measurement; fibre optic sensors; liquid crystal devices; molecular orientation; nematic liquid crystals; polymer dispersed liquid crystals; voltage measurement; directional change; director alignment; electromagnetic field sensing; environmental electromagnetic fields; fiber-optical sensor applications; hollow core; liquid crystal molecules; liquid crystal optical fibers; nematic liquid crystals; polymer-dispersed liquid crystals; reflection characteristics; sensor heads; transmission characteristics; voltage sensing; Crystallization; Electromagnetic fields; Liquid crystal polymers; Liquid crystals; Magnetic materials; Optical fiber sensors; Optical fibers; Optical materials; Optical scattering; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Optical Fiber Sensors Conference Technical Digest, 2002. Ofs 2002, 15th

Conference_Location

Portland, OR, USA

Print_ISBN

0-7803-7289-1

Type

conf

DOI

10.1109/OFS.2002.1000648

Filename

1000648