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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)

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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

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

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)

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  1. L. Lucchetti, M. Di Fabrizio, O. Francescangeli, F. Simoni, "Colossal optical nonlinearity in dye doped liquid crystals," Opt. Commun. 233, 417-424 (2004). [CrossRef]
  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]
  4. L. Lucchetti, M. Di Fabrizio, M. Gentili and F. Simoni, "Optical phase conjugation and efficient wave front correction of weak light beams by dye doped liquid crystals," Appl. Phys. Lett. 83, 5389-5391 (2003). [CrossRef]
  5. L. Lucchetti, M. Gentili and F. Simoni, "Optical phase conjugation and wavefront correction by thin nematic liquid crystal cells," Mol. Cryst. Liq. Cryst. 429, 313-324 (2005). [CrossRef]
  6. L. Lucchetti, M. Gentili and F. Simoni, "Pretransitional enhancement of the optical nonlinearity of thin dye-doped liquid crystals in the nematic phase," Appl. Phys. Lett. 86, 1511171 - 1511173 (2005). [CrossRef]
  7. V. Boichuk, S. Kucheev, J. Parka, V. Reshetnyak, Y. Reznikov, I. Shiyanovskaya, K.D. Singer, S. Slussarenko, "Surface-mediated light-controlled Friedericksz transition in a nematic liquid crystal cell," J. Appl. Phys. 90, 5963-5967 (2001). [CrossRef]
  8. P. Pagliusi and G. Cipparrone, "Surface-induced photorefractive-like effect in pure liquid crystals," Appl. Phys. Lett. 80, 168-170 (2002). [CrossRef]
  9. P. Pagliusi and G. Cipparrone, "Charge transport due to photoelectric interface activation in pure nematic liquid-crystal cells," J. Appl. Phys. 92, 4863-4869 (2002). [CrossRef]
  10. P. Pagliusi, B. Zappone, G. Cipparrone, G. Barbero, "Molecular reorientation dynamics due to direct current voltage-induced ion redistribution in undoped nematic planar cell," J. Appl. Phys. 96, 218-223 (2004). [CrossRef]
  11. E. Ouskova, Yu. Reznikov, S.V. Shiyanovskii, L. Su, J.L. West, O.V. Kuksenok, O. Francescangeli and F. Simoni, "Photo-orientation of liquid crystals due to light-induced desorption and adsorption of dye molecules on an aligning surface," Phys. Rev. E 64, 0517091-0517095 (2001). [CrossRef]
  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]
  13. J. Zhang, V. Ostroverkhov, K.D. Singer, V. Reshetnyak, Y. Reznikov, "Electrically controlled surface diffraction gratings in nematic liquid crystals," Opt. Lett. 25, 414-416 (2000). [CrossRef]

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