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Proceedings Paper

Surfactant-controlled light-induced reorientation in dye-doped nematic liquid crystals
Author(s): Stefania Residori; Artyom Petrosyan
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Paper Abstract

We show that a very large optical response is obtained in azo-dye doped nematic liquid crystals for low input light intensities (of the order of a few tens of μW/cm2 and that this extreme sensitivity of the nematic film results from a combined action of the photoisomerization process of the azo-dye molecules and the light-induced changes of the anchoring energy. The liquid crystal reorientation can be controlled by changing the molecular length of the ionic surfactant which is used as anchoring agent.

Paper Details

Date Published: 8 September 2004
PDF: 9 pages
Proc. SPIE 5464, Organic Optoelectronics and Photonics, (8 September 2004); doi: 10.1117/12.545501
Show Author Affiliations
Stefania Residori, Institut Non Lineaire de Nice Sophia Antipolis (France)
Artyom Petrosyan, Ecole Normale Superieure de Lyon (France)

Published in SPIE Proceedings Vol. 5464:
Organic Optoelectronics and Photonics
Paul L. Heremans; Michele Muccini; Hans Hofstraat, Editor(s)

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