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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 38, Iss. 6 — Mar. 15, 2013
  • pp: 878–880

First-order optical Freedericksz transition in a dye-doped nematic liquid crystal

F. Simoni, D. E. Lucchetta, L. Lucchetti, H. L. Ong, S. V. Serak, and N. Tabiryan  »View Author Affiliations


Optics Letters, Vol. 38, Issue 6, pp. 878-880 (2013)
http://dx.doi.org/10.1364/OL.38.000878


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Abstract

A first-order optical Freedericksz transition in a nematic liquid crystal doped by a small quantity of a dichroic dye with negative dichroism is observed. The initial homeotropic state corresponds to maximum absorption for the linearly polarized incident beam, while reorientation reduces absorption increasing the optical torque: this process produces the positive feedback leading to the observed bistable behavior.

© 2013 Optical Society of America

OCIS Codes
(190.1450) Nonlinear optics : Bistability
(190.4720) Nonlinear optics : Optical nonlinearities of condensed matter

ToC Category:
Nonlinear Optics

History
Original Manuscript: December 19, 2012
Revised Manuscript: February 7, 2013
Manuscript Accepted: February 7, 2013
Published: March 12, 2013

Citation
F. Simoni, D. E. Lucchetta, L. Lucchetti, H. L. Ong, S. V. Serak, and N. Tabiryan, "First-order optical Freedericksz transition in a dye-doped nematic liquid crystal," Opt. Lett. 38, 878-880 (2013)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-38-6-878

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