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Proceedings Paper

Liquid-crystalline polymer holograms for high-density optical storage and photomechanical analysis
Author(s): A. Shishido; N. Akamatsu
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Paper Abstract

We report linear and crosslinked azobenzene containing liquid-crystalline polymers which can be applied to high-density optical storage and photomechanical analysis. We introduced a molecular design concept of multicomponent systems composed of photoresponse, refactive-index change amplification, and transparency units. Taking advantage of characteristics of liquid crystals (optical anisotropy and cooperative motion), polarization holograms were recorded, which enabled us higher-density holographic storage. On the other hand, crosslinked liquid-crystalline azobenzene polymer films were fabricated to investigate the photomechanical behavior. We have found that a large change in Young’s modulus is induced by several mol%-cis form production. Furthermore, a unique bending behavior, which cannot be explained by the conventional bending mechanism, was observed in the crosslinked liquid-crystalline polymer films with azobenzene in the side chain.

Paper Details

Date Published: 15 October 2012
PDF: 7 pages
Proc. SPIE 8475, Liquid Crystals XVI, 84750F (15 October 2012); doi: 10.1117/12.930300
Show Author Affiliations
A. Shishido, Tokyo Institute of Technology (Japan)
N. Akamatsu, Tokyo Institute of Technology (Japan)

Published in SPIE Proceedings Vol. 8475:
Liquid Crystals XVI
Iam Choon Khoo, Editor(s)

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