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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Veröffentlicht in:	Europhysics letters 2002-04, Vol.58 (1), p.67-73, Article 67
Hauptverfasser:	Bardon, S, Coleman, D, Clark, N. A, Kosa, T, Yuan, H, Palffy-Muhoray, P
Format:	Artikel
Sprache:	eng
Schlagworte:	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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Zusammenfassung:	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.
ISSN:	0295-5075 1286-4854
DOI:	10.1209/epl/i2002-00607-5