In-plane pitch control of cholesteric liquid crystals by formation of artificial domains via patterned photopolymerization

A controlled helix pitch modulation in the in-plane direction of a planarly aligned cholesteric liquid crystal cell is demonstrated by using photopolymerizable cholesteric liquid crystals. By fabricating artificial domains with a closed volume via two-photon excitation laser-lithography, the degree...

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Veröffentlicht in:Optics express 2008-11, Vol.16 (23), p.19033-19041
Hauptverfasser: Yoshida, Hiroyuki, Miura, Yusuke, Tokuoka, Kazuki, Suzuki, Satoshi, Fujii, Akihiko, Ozaki, Masanori
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container_end_page 19041
container_issue 23
container_start_page 19033
container_title Optics express
container_volume 16
creator Yoshida, Hiroyuki
Miura, Yusuke
Tokuoka, Kazuki
Suzuki, Satoshi
Fujii, Akihiko
Ozaki, Masanori
description A controlled helix pitch modulation in the in-plane direction of a planarly aligned cholesteric liquid crystal cell is demonstrated by using photopolymerizable cholesteric liquid crystals. By fabricating artificial domains with a closed volume via two-photon excitation laser-lithography, the degree of pitch modulation could be controlled by adjusting the surface area to volume ratio of the domain. A pitch modulation of over 60 nm was realized by designing the shape of the artificial domain.
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source MEDLINE; DOAJ Directory of Open Access Journals; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals
subjects Crystallization - methods
Liquid Crystals - chemistry
Phase Transition
Photochemistry - methods
Polymers - chemistry
Refractometry - methods
title In-plane pitch control of cholesteric liquid crystals by formation of artificial domains via patterned photopolymerization
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