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Optica Publishing Group
  • Conference on Lasers and Electro-Optics
  • OSA Technical Digest (Optica Publishing Group, 1993),
  • paper CTuN27

Optically induced extraordinarily large negative orientational nonlinearity in dye-doped liquid crystal

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Abstract

Nematic liquid crystals are noted for their large optical reorientational nonlinearities. Such a reorientation process takes on some new and interesting features when traces of absorbing dye molecules are dissolved in the liquid crystal.1-3 In this paper, we report the observation of a new negative reorientation effect that occurs in the highly absorptive dye-doped liquid crystal (DDLC). The efficiency of this reorientation process is governed by tile types of dye molecules used as dopants. This new effect can give an optical nonlinearity that is two to three orders of magnitude larger than the ordinary so-called "Giant Optical Nonlinearity" in liquid crystal.3

© 1993 Optical Society of America

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