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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry M. Van Driel
  • Vol. 24, Iss. 5 — May. 1, 2007
  • pp: 1122–1129

Observation of spatial optical solitons launched in biased and bias-free polymer-stabilized nematics

Jean François Blach, Jean François Henninot, Mohammed Petit, Abdelylah Daoudi, and Marc Warenghem  »View Author Affiliations


JOSA B, Vol. 24, Issue 5, pp. 1122-1129 (2007)
http://dx.doi.org/10.1364/JOSAB.24.001122


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Abstract

Spatial optical solitons have already been successfully launched in a pure nematic or in a dye-doped nematic, exploiting either the orientational or thermal nonlinearity of the liquid-crystal materials. The self-induced index gradient that yields to self-collimation of the beam is a diffusion-type process. In the case of reorientational nonlinearity, it is correlated to the elastic property of the liquid crystal bounded by its container. We show that launching a spatial soliton is possible in more frustrated systems, such as a polymer-stabilized nematic, despite the loss of mobility of the liquid-crystal molecules embedded in a light polymer network. It is shown not only that the soliton is obtained for input powers similar to and even lower than those in the pure nematic, but that it is more stable. Moreover, it has been possible to partially freeze an index gradient during the polymerization process and to launch a soliton without any extra bias.

© 2007 Optical Society of America

OCIS Codes
(160.3710) Materials : Liquid crystals
(190.4710) Nonlinear optics : Optical nonlinearities in organic materials
(190.5530) Nonlinear optics : Pulse propagation and temporal solitons

ToC Category:
Nonlinear Optics

History
Original Manuscript: September 14, 2006
Revised Manuscript: November 22, 2006
Manuscript Accepted: January 2, 2007
Published: April 17, 2007

Citation
Jean François Blach, Jean François Henninot, Mohammed Petit, Abdelylah Daoudi, and Marc Warenghem, "Observation of spatial optical solitons launched in biased and bias-free polymer-stabilized nematics," J. Opt. Soc. Am. B 24, 1122-1129 (2007)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-24-5-1122

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