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