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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 3 — Feb. 11, 2013
  • pp: 3434–3444

Observation of the photorefractive effects in bent-core liquid crystals

Ying Xiang, Yi-Kun Liu, Zhi-Yong Zhang, Hong-Jun You, Tian Xia, Everett Wang, and Zheng-Dong Cheng  »View Author Affiliations


Optics Express, Vol. 21, Issue 3, pp. 3434-3444 (2013)
http://dx.doi.org/10.1364/OE.21.003434


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Abstract

We present a new observation of photorefractive (PR) effects in bent-core nematic (BCN) liquid crystal (LC) materials, where two kinds of optical-induced gratings are demonstrated and compared in pure and surface-doped BCN systems. The experimental results showed that these two kinds of gratings exhibit distinctive different polarization-dependent and angular-dependent behaviors, respectively. Furthermore, we supplied the pure and surface-doped rodlike LC systems for comparison, which revealed that V shape molecular structure of BCN can produce charge carrier more efficiently than rodlike molecular structure does. Thus BCN materials can offer an exciting potential for optical information processing.

© 2013 OSA

OCIS Codes
(160.3710) Materials : Liquid crystals
(160.5320) Materials : Photorefractive materials
(190.5330) Nonlinear optics : Photorefractive optics
(230.3720) Optical devices : Liquid-crystal devices

ToC Category:
Materials

History
Original Manuscript: November 26, 2012
Revised Manuscript: January 19, 2013
Manuscript Accepted: January 19, 2013
Published: February 4, 2013

Citation
Ying Xiang, Yi-Kun Liu, Zhi-Yong Zhang, Hong-Jun You, Tian Xia, Everett Wang, and Zheng-Dong Cheng, "Observation of the photorefractive effects in bent-core liquid crystals," Opt. Express 21, 3434-3444 (2013)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-21-3-3434


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