Ordering of a.c. electric-field-induced domains in dye-doped nematics under photoexcitation

Autor:	Svetlana V. Serak, Janusz Parka, Tatiana A. Davidovich, A. V. Agashkov
Rok vydání:	2001
Předmět:	Diffraction Condensed matter physics Physics::Optics Radiation Laser Anthraquinone law.invention Photoexcitation chemistry.chemical_compound chemistry Liquid crystal law Electric field Electrohydrodynamics
Zdroj:	SPIE Proceedings.
ISSN:	0277-786X
DOI:	10.1117/12.428332
Popis:	Electrohydrodynamic instabilities arising with a.c. electric field applied to planar-oriented cells filled with anthraquinone dye-doped multicomponent nematic mixture have been studied by diffraction methods. It has been found that c.w. He-Ne laser radiation of small power (~1 mW) exerts ordering effect on the LC layer domain structure. The ordered structure can persist in the presence of the same a.c. electric field for a few tens of minutes. The size of periodic optical irregularity has been calculated.
Databáze:	OpenAIRE
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