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Proceedings Paper

Liquid crystal molecular orientation in photonic liquid crystal fibers with photopolymer layers
Author(s): Slawomir Ertman; Tomasz R. Woliński; Aleksandra Czapla; Katarzyna Nowecka; Edward Nowinowski-Kruszelnicki; Jan Wójcik
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Paper Abstract

Photonic liquid crystal fibers (PLCFs) combine unique properties of photonic crystal fibers and liquid crystals (LCs). Liquid crystal molecules orientation within the PLCFs has crucial impact on their optical properties since it determines the radial refractive index profile of the LC-filled micro-holes. There are many techniques used for LC molecules orientation control, but most of them are not suitable for application in microstructured fibers characterized by holes with diameters in the order of few micrometers. It seems that the only method that could be applied in PLCFs is using of thin photopolymer layers, in which surface anisotropy can be induced in the way of photochemical reactions. In this paper we present preliminary experimental results of the photoinduced molecular alignment in the PLCF induced by a thin polyvinylcinnamate (PVCi) film irradiated with the linearly polarized ultraviolet light.

Paper Details

Date Published: 9 May 2007
PDF: 7 pages
Proc. SPIE 6587, Liquid Crystals and Applications in Optics, 658706 (9 May 2007); doi: 10.1117/12.723790
Show Author Affiliations
Slawomir Ertman, Warsaw Univ. of Technology (Poland)
Tomasz R. Woliński, Warsaw Univ. of Technology (Poland)
Aleksandra Czapla, Warsaw Univ. of Technology (Poland)
Katarzyna Nowecka, Warsaw Univ. of Technology (Poland)
Edward Nowinowski-Kruszelnicki, Military Univ. of Technology (Poland)
Jan Wójcik, Maria Curie Sklodowska Univ. (Poland)

Published in SPIE Proceedings Vol. 6587:
Liquid Crystals and Applications in Optics
Milada Glogarova; Peter Palffy-Muhoray; Martin Copic, Editor(s)

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