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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 14, Iss. 6 — Mar. 20, 2006
  • pp: 2236–2241

Colossal optical nonlinearity induced by a low frequency external electric field in dye-doped liquid crystals

L. Lucchetti, M. Gentili, and F. Simoni  »View Author Affiliations


Optics Express, Vol. 14, Issue 6, pp. 2236-2241 (2006)
http://dx.doi.org/10.1364/OE.14.002236


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Abstract

We report on the effects of a low-frequency electric field on the optical nonlinear response of thin dye-doped liquid crystal cells. Experimental data show that the external field allows reaching extremely high values of the optical nonlinearity without any critical control of the cell interfaces. A qualitative interpretation of the collected data, based on the light-induced modulation of the bulk voltage through surface modifications, is proposed.

© 2006 Optical Society of America

OCIS Codes
(160.3710) Materials : Liquid crystals
(190.0190) Nonlinear optics : Nonlinear optics

ToC Category:
Nonlinear Optics

History
Original Manuscript: December 15, 2005
Revised Manuscript: January 16, 2006
Manuscript Accepted: March 15, 2006
Published: March 20, 2006

Citation
L. Lucchetti, M. Gentili, and F. Simoni, "Colossal optical nonlinearity induced by a low frequency external electric field in dye-doped liquid crystals," Opt. Express 14, 2236-2241 (2006)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-14-6-2236


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References

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  2. F. Simoni, L. Lucchetti, D.E. Lucchetta, O. Francescangeli, "On the origin of the huge nonlinear response of dye doped liquid crystals," Opt. Express 9, 85-90 (2001). [CrossRef] [PubMed]
  3. L. Lucchetti, D.E. Lucchetta, O. Francescangeli, F. Simoni, "SINE: surface induced nonlinear effects," Mol. Cryst. Liq. Cryst. 375, 641-650 (2002). [CrossRef]
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  12. L , Lucchetti, M. Di Fabrizio, O. Francescangeli and F. Simoni, "Light-induced adsorption and desorption in dynamic and stable grating formation in methyl-red doped liquid crystals," J. Nonlinear Opt. Phys. Mater. 11, 13-23 (2002). [CrossRef]
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