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Proceedings Paper

New method for measuring the viscoelastic twist properties of nematic liquid crystals by evanescent wave scattering
Author(s): Chien-Ming Chen; Keiichi Wakida; Masahiko Hiraki; Kiyoshi Takamasu; Shigeo Ozono
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Paper Abstract

There exist many studies for measuring the viscoelastic properties with the Frederiks transition of nematic liquid crystal sin an external field. It usually needs to measure the threshold field before measuring the viscoelastic properties. This study introduces the method of measuring the scattering of nematic liquid crystals with evanescent-wave to get the threshold field since it can make sure the anchoring condition. The result for the elastic constants and twist viscosity (gamma) are reported and compared with the data from the liquid crystals supplier.

Paper Details

Date Published: 30 October 1997
PDF: 8 pages
Proc. SPIE 3143, Liquid Crystals, (30 October 1997); doi: 10.1117/12.279263
Show Author Affiliations
Chien-Ming Chen, Univ. of Tokyo (Japan)
Keiichi Wakida, Univ. of Tokyo (Japan)
Masahiko Hiraki, Univ. of Tokyo (Japan)
Kiyoshi Takamasu, Univ. of Tokyo (Japan)
Shigeo Ozono, Univ. of Tokyo (Japan)

Published in SPIE Proceedings Vol. 3143:
Liquid Crystals
Iam-Choon Khoo, Editor(s)

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