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Proceedings Paper

Molecular orientation effects in nematic liquid crystal cells by an external electric field and their applications to a multisensing system
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Paper Abstract

The multi-sensing system for detecting external electric fields and decomposition products of SF6 is proposed by using a nematic liquid crystal (LC) cell sandwiched with two cholesteric LC cells and a corner cube prism coated with dye films. The electric field and the decomposition products can be measured as changes in optical retardations of the nematic LC cell at a selective reflection band of the cholesteric LC and as the absorption changes of the dye films at different wavelength regions outside the selective reflection band, respectively. Furthermore, we discuss the dependence of the sensitivity to the electric field on the molecular orientation and the anchoring strength of the alignment layer in the nematic LC cells.

Paper Details

Date Published: 14 October 1999
PDF: 8 pages
Proc. SPIE 3800, Liquid Crystals III, (14 October 1999); doi: 10.1117/12.365803
Show Author Affiliations
Marenori Kawamura, Akita Univ. (Japan)
Susumu Sato, Akita Univ. (Japan)

Published in SPIE Proceedings Vol. 3800:
Liquid Crystals III
Iam-Choon Khoo, Editor(s)

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