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Photocontrolled Alignment of Chiral Nematic Liquid Crystals
Author(s) -
Ruslim C.,
Ichimura K.
Publication year - 2001
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/1521-4095(200105)13:9<641::aid-adma641>3.0.co;2-b
Subject(s) - liquid crystal , polarizer , materials science , helix (gastropod) , optics , biaxial nematic , chirality (physics) , perpendicular , birefringence , crystallography , optoelectronics , condensed matter physics , physics , geometry , chemistry , chiral symmetry , quantum mechanics , nambu–jona lasinio model , quark , ecology , mathematics , snail , biology
The first successful alignment of helix axes of chiral nematic liquid crystals (LCs) by the photoalignment technique is reported here. The helix axis aligns perpendicularly to the propagation direction of the incident non‐polarized light. Dark and bright images (see Figure) of the aligned helix axis of a chiral nematic LC are reversed by rotating the crossed polarizers at 45°.