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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 6 — Mar. 17, 2008
  • pp: 4015–4022

Nanoparticle Doped Organic-Inorganic Hybrid Photorefractives

G. Cook, A. V. Glushchenko, V. Reshetnyak, A. T. Griffith, M. A. Saleh, and D. R. Evans  »View Author Affiliations


Optics Express, Vol. 16, Issue 6, pp. 4015-4022 (2008)
http://dx.doi.org/10.1364/OE.16.004015


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Abstract

The gain characteristics of liquid crystal photorefractive cells doped with ferroelectric nanoparticles has been measured. The liquid crystal two beam coupling gain is found to reverse in sign and increase in magnitude through the addition of ferroelectric BaTiO3 nanoparticles, yielding gain coefficients up to 1100 cm−1 in the Bragg regime. We attribute the novel effects of gain reversal and magnitude increase to interactions between the ferroelectric particles’ spontaneous polarization and the local liquid crystal flexopolarization.

© 2008 Optical Society of America

OCIS Codes
(160.1190) Materials : Anisotropic optical materials
(160.3710) Materials : Liquid crystals
(160.5320) Materials : Photorefractive materials

ToC Category:
Materials

History
Original Manuscript: January 3, 2008
Revised Manuscript: February 26, 2008
Manuscript Accepted: March 3, 2008
Published: March 11, 2008

Citation
G. Cook, A. V. Glushchenko, V. Reshetnyak, A. T. Griffith, M. A. Saleh, and D. R. Evans, "Nanoparticle doped organic-inorganic hybrid photorefractives," Opt. Express 16, 4015-4022 (2008)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-16-6-4015


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References

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