Formation of molecular oriented surface relief gratings with 325nm laser in hydrogen-bonded liquid crystalline copolymer films

The photo-cross-linkable hydrogen-bonded liquid crystalline copolymers (PLCs) contained cinnamic acid side groups and benzoic acid side groups were synthesized by radical copolymerization. The PLC revealed nematic LC characteristics due to hydrogen-bonded dimmer. Surface relief gratings (SRG) in PLC...

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Bibliographic Details
Published inProceedings of Japanese Liquid Crystal Society Annual meeting p. PB52
Main Authors Tashima, Ayaka, Kondo, Mizuho, Kawatsuki, Nobuhiro, Emoto, Akira, Ono, Hiroshi, Okada, Makoto, Matsui, Shinji
Format Journal Article
LanguageJapanese
Published THE JAPANESE LIQUID CRYSTAL SOCIETY 2010
Subjects
diffractive grating
holography
liquid crystalline copolymer
photoinduced orientation
surface relief formation
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Summary:The photo-cross-linkable hydrogen-bonded liquid crystalline copolymers (PLCs) contained cinnamic acid side groups and benzoic acid side groups were synthesized by radical copolymerization. The PLC revealed nematic LC characteristics due to hydrogen-bonded dimmer. Surface relief gratings (SRG) in PLC films were fabricated by using intensity modulated holographic exposing of 325nm He-Cd laser with various polarization. The fabricated SR gratings showed incident polarization dependency of the diffraction efficiencies, which indicates the molecular reorientaion in addition to the SR formation.
Bibliography:PB52
ISSN:1880-3490
2432-5988
DOI:10.11538/ekitou.2010.0.PB52.0