Three-dimensional dye distribution in photo-oriented liquid-crystal alignment layers

The three-dimensional optical anisotropy of photo-buffed dye-doped polymer films and the resulting orientation imparted to a liquid crystal in contact are probed using total internal reflection. Although the linearly polarized writing light generates a uniaxial distribution of dye molecules, the pol...

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Published in:Europhysics letters 2002-04, Vol.58 (1), p.67-73, Article 67
Main Authors: Bardon, S, Coleman, D, Clark, N. A, Kosa, T, Yuan, H, Palffy-Muhoray, P
Format: Article
Language:English
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42.70.Jk
61.30.Gd
61.30.Hn
Applied sciences
Exact sciences and technology
Miscellaneous
Organic polymers
Physicochemistry of polymers
Properties and characterization
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description The three-dimensional optical anisotropy of photo-buffed dye-doped polymer films and the resulting orientation imparted to a liquid crystal in contact are probed using total internal reflection. Although the linearly polarized writing light generates a uniaxial distribution of dye molecules, the polymer films are biaxial, a result of symmetry breaking by the film surface.
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subjects 42.70.Jk
61.30.Gd
61.30.Hn
Applied sciences
Exact sciences and technology
Miscellaneous
Organic polymers
Physicochemistry of polymers
Properties and characterization
title Three-dimensional dye distribution in photo-oriented liquid-crystal alignment layers
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