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Proceedings Paper

Light-induced anchoring and reorientation effects in dye-doped liquid crystals
Author(s): Oriano Francescangeli; Liana Lucchetti; Francesco F. Simoni; Sergei Slussarenko; E. Ouskova; Yuri A. Reznikov; S. Shiyanovskii; John L. West
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Paper Abstract

A review of the recent results of our group in the field of light-induced anchoring and reorientation effects in dye-doped liquid crystals (LCs) is presented. In particular, the phenomena of photoinduced anchoring and permanent reorientation over a polymeric boundary surface of a dye-doped LC cell is reported, both in the isotropic phase and in the orientationally ordered nematic phase. The results have been interpreted microscopically in terms of adsorption and desorption of the dichroic azo-dye (methyl-red) molecules onto the illuminated surface during light irradiation. The model proposed is in agreement with recent results on the dynamic and stable grating formation in methyl-red doped LCs .

Paper Details

Date Published: 12 December 2002
PDF: 13 pages
Proc. SPIE 4799, Liquid Crystals VI, (12 December 2002); doi: 10.1117/12.453274
Show Author Affiliations
Oriano Francescangeli, Univ. degli Studi di Ancona (Italy)
Liana Lucchetti, Univ. degli Studi di Ancona (Italy)
Francesco F. Simoni, Univ. degli Studi di Ancona (Italy)
Sergei Slussarenko, Institute of Physics (Ukraine)
E. Ouskova, Institute of Physics (Ukraine)
Yuri A. Reznikov, Institute of Physics (Ukraine)
S. Shiyanovskii, Kent State Univ. (United States)
John L. West, Kent State Univ. (United States)

Published in SPIE Proceedings Vol. 4799:
Liquid Crystals VI
Iam-Choon Khoo, Editor(s)

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