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Optics Letters

Optics Letters


  • Vol. 28, Iss. 23 — Dec. 1, 2003
  • pp: 2369–2371

Optical two-beam coupling for a surface-induced photorefractive effect in undoped liquid crystals

Pasquale Pagliusi and Gabriella Cipparrone  »View Author Affiliations

Optics Letters, Vol. 28, Issue 23, pp. 2369-2371 (2003)

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We report beam-coupling measurements of undoped nematic planar cells, for which the surface-induced photorefractive effect (SIPRE) has been confirmed to be due to photoelectric interface activation. We show that the energy transfer strongly depends on experimental geometry. Diffraction efficiency and beam-coupling analyses suggest that the unusual local and (or) nonlocal behavior can be ascribed to an additional in-phase-modulated longitudinal electric field component, unaccountable by standard photorefractivity. We consider a simple charge distribution model of the SIPRE, which produces a space–charge field having two orthogonal modulated components, in phase and π/2 out of phase. Through the liquid crystal’s electric response, the exploited geometries verify the presence of the two components.

© 2003 Optical Society of America

OCIS Codes
(050.1950) Diffraction and gratings : Diffraction gratings
(190.4350) Nonlinear optics : Nonlinear optics at surfaces
(190.5330) Nonlinear optics : Photorefractive optics
(190.7070) Nonlinear optics : Two-wave mixing
(230.3720) Optical devices : Liquid-crystal devices
(240.6670) Optics at surfaces : Surface photochemistry

Pasquale Pagliusi and Gabriella Cipparrone, "Optical two-beam coupling for a surface-induced photorefractive effect in undoped liquid crystals," Opt. Lett. 28, 2369-2371 (2003)

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  1. E. V. Rudenko and A. V. Sukhov, JETP 78, 875 (1994), and references therein.
  2. I. C. Khoo, Opt. Lett. 20, 2137 (1995).
  3. G. P. Wiederrecht, Annu. Rev. Mater. Res. 31, 139 (2001), and references therein.
  4. P. Pagliusi and G. Cipparrone, Appl. Phys. Lett. 80, 168 (2002), and references therein.
  5. H. Kogelnik, Bell. Syst. Tech. J. 48, 2909 (1969).
  6. G. Montemezzani and M. Zgonik, Phys. Rev. E 55, 1035 (1997), and references therein.
  7. J. Zhang, V. Ostroverkhov, K. D. Singer, V. Reshetnyak, and Yu. Reznikov, Opt. Lett. 25, 414 (2000).
  8. P. Pagliusi and G. Cipparrone, J. Appl. Phys. 93, 9116 (2003), and references therein.
  9. J. N. Israelachvili, Intermolecular and Surface Forces (Academic, London, 1992).
  10. G. Zhang, G. Montemezzani, and P. Günter, J. Appl. Phys. 88, 1709 (2000).

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