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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 37, Iss. 4 — Feb. 15, 2012
  • pp: 734–736

Two-wave mixing in chiral dye-doped nematic liquid crystals

D. Wei, A. Iljin, Z. Cai, S. Residori, and U. Bortolozzo  »View Author Affiliations


Optics Letters, Vol. 37, Issue 4, pp. 734-736 (2012)
http://dx.doi.org/10.1364/OL.37.000734


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Abstract

Two-wave mixing in nematic liquid crystals doped with dyes and chiral agents is studied. The photo-induced spatial modulation of the chiral structure, together with the diffusion anisotropy of the mixture, determine a relatively fast response time, a spatial resolution of 1 μm, and a maximum gain for circularly polarized interacting beams. The gain is insensitive to changes in linear polarization, while it varies with the grating period and with the pump-to-signal intensity ratio.

© 2012 Optical Society of America

OCIS Codes
(120.2880) Instrumentation, measurement, and metrology : Holographic interferometry
(160.3710) Materials : Liquid crystals
(190.2055) Nonlinear optics : Dynamic gratings
(190.4223) Nonlinear optics : Nonlinear wave mixing

ToC Category:
Materials

History
Original Manuscript: September 28, 2011
Revised Manuscript: December 23, 2011
Manuscript Accepted: January 7, 2012
Published: February 15, 2012

Citation
D. Wei, A. Iljin, Z. Cai, S. Residori, and U. Bortolozzo, "Two-wave mixing in chiral dye-doped nematic liquid crystals," Opt. Lett. 37, 734-736 (2012)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-37-4-734


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