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Fast response beam coupling in liquid crystal cells sandwiched between ZnSe substrates |
Optics Express, Vol. 20, Issue 14, pp. 15843-15852 (2012)
http://dx.doi.org/10.1364/OE.20.015843
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Abstract
Fast responses (20 ms rising time) both in symmetrical two-wave and degenerate-four-wave mixing experiments were observed and investigated in C60 doped 4,4’-n-pentylcyanobiphenyl liquid crystal cells sandwiched between bare ZnSe substrates with an electric field applied parallel to the cell surfaces. The ZnSe material seems responsible for the fast response due to its excellent charge carrier transportation capability. Strong fanning effect and transient features were seen and studied, hinting super strong photorefractive effect in the material system. This low voltage operated liquid crystal based photorefractive approach is promising in real time applications over visible to terahertz regime.
© 2012 OSA
OCIS Codes
(090.2870) Holography : Holographic display
(160.3710) Materials : Liquid crystals
(190.4360) Nonlinear optics : Nonlinear optics, devices
(190.5330) Nonlinear optics : Photorefractive optics
(090.5694) Holography : Real-time holography
ToC Category:
Holography
History
Original Manuscript: April 27, 2012
Revised Manuscript: June 15, 2012
Manuscript Accepted: June 17, 2012
Published: June 27, 2012
Citation
Chao Lian, Hua Zhao, Yanbo Pei, Xiudong Sun, and Jingwen Zhang, "Fast response beam coupling in liquid crystal cells sandwiched between ZnSe substrates," Opt. Express 20, 15843-15852 (2012)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-14-15843
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