Light-driven modulation of scalar order parameter for high spatial resolution

Improving the spatial resolution of the light-modulated scalar order parameter allows high-precision manipulation of functional molecules in the liquid crystals. This study shows that the poor resolution caused by the diffusion of azobenzene is overcome through the polymerization of an azobenzene mo...

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Bibliographic Details
Published inEurophysics letters Vol. 131; no. 2; pp. 26001 - 26005
Main Authors Chien, Chiao-Ying, Yamamoto, Jun
Format Journal Article
LanguageEnglish
Published Les Ulis EDP Sciences, IOP Publishing and Società Italiana di Fisica 01.07.2020
IOP Publishing
Subjects
Azo compounds
Birefringence
Liquid crystals
Nematic crystals
Order parameters
Polymerization
Spatial resolution
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Summary:Improving the spatial resolution of the light-modulated scalar order parameter allows high-precision manipulation of functional molecules in the liquid crystals. This study shows that the poor resolution caused by the diffusion of azobenzene is overcome through the polymerization of an azobenzene monomer in the nematic phase. The photo-induced spatial variation of birefringence of non-polymerized and polymerized samples is quantitatively investigated under the same stimulating light. The resolution of the non-polymerized sample decays with time, while the polymerized sample can maintain this feature close to that of the stimulating light.
ISSN:0295-5075
1286-4854
1286-4854
DOI:10.1209/0295-5075/131/26001