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Proceedings Paper

Optical nonlinearities of liquid crystals controlled by surfaces
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Paper Abstract

We show that light-induced modification of the anchoring conditions can lead to an extraordinarily large optical response in dye-doped nematic liquid crystals. The bulk reorientation due to the collective elastic behavior of the liquid crystal is the origin of the nonlinearity, which occurs without a direct optical torque on the molecular director in the bulk, We call this effect SINE (Surface Induced Nonlinear Effect). These results can also explain the origin of the supra-nonlinear behavior recently observed in the same composites.

Paper Details

Date Published: 8 November 2001
PDF: 8 pages
Proc. SPIE 4457, Spatial Light Modulators: Technology and Applications, (8 November 2001); doi: 10.1117/12.447747
Show Author Affiliations
Liana Lucchetti, INFM/Univ. degli Studi di Ancona (Italy)
D. Lucchetta, INFM/Univ. degli Studi di Ancona (Italy)
Oriano Francescangeli, INFM/Univ. degli Studi di Ancona (Italy)
Francesco F. Simoni, INFM/Univ. degli Studi di Ancona (Italy)


Published in SPIE Proceedings Vol. 4457:
Spatial Light Modulators: Technology and Applications
Uzi Efron, Editor(s)

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