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Light-controlled reorientation of nematic liquid crystal driven by an electric field

Varsenik Nersesyan (UGent) , Toon Brans (UGent) , Filip Beunis (UGent) , Rafael Drampyan, Jeroen Beeckman (UGent) and Kristiaan Neyts (UGent)
(2016) LIQUID CRYSTALS. 43(10). p.1422-1430
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Abstract
The joint influence of optical and (quasi-)static electric fields on the orientation of liquid crystal gives rise to peculiar effects. In this article we report on the generation of transient domains in liquid crystals, which are an order of magnitude larger than the size of the optical field profile. The formation of such a domain is due to the fact that the initially present optical field reverses the pre-tilt, and the voltage that is then applied gives rise to an amplification of the tilt angle. The resulting reorientation of the director strongly depends on the starting conditions of the preliminary present optical field. We demonstrate different switching conditions, depending on the relation between the incident angle of the beam and the pre-tilt angle. The resulting refractive index profiles give rise to lensing effects.
Keywords
nonlinearity, Gaussian beam, Optical reorientation, domain wall, nematic liquid crystal, DISPLAYS, SOLITONS, DEFECTS, OPTICS, PHASE

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Please use this url to cite or link to this publication:

MLA
Nersesyan, Varsenik et al. “Light-controlled Reorientation of Nematic Liquid Crystal Driven by an Electric Field.” LIQUID CRYSTALS 43.10 (2016): 1422–1430. Print.
APA
Nersesyan, V., Brans, T., Beunis, F., Drampyan, R., Beeckman, J., & Neyts, K. (2016). Light-controlled reorientation of nematic liquid crystal driven by an electric field. LIQUID CRYSTALS, 43(10), 1422–1430.
Chicago author-date
Nersesyan, Varsenik, Toon Brans, Filip Beunis, Rafael Drampyan, Jeroen Beeckman, and Kristiaan Neyts. 2016. “Light-controlled Reorientation of Nematic Liquid Crystal Driven by an Electric Field.” Liquid Crystals 43 (10): 1422–1430.
Chicago author-date (all authors)
Nersesyan, Varsenik, Toon Brans, Filip Beunis, Rafael Drampyan, Jeroen Beeckman, and Kristiaan Neyts. 2016. “Light-controlled Reorientation of Nematic Liquid Crystal Driven by an Electric Field.” Liquid Crystals 43 (10): 1422–1430.
Vancouver
1.
Nersesyan V, Brans T, Beunis F, Drampyan R, Beeckman J, Neyts K. Light-controlled reorientation of nematic liquid crystal driven by an electric field. LIQUID CRYSTALS. 2016;43(10):1422–30.
IEEE
[1]
V. Nersesyan, T. Brans, F. Beunis, R. Drampyan, J. Beeckman, and K. Neyts, “Light-controlled reorientation of nematic liquid crystal driven by an electric field,” LIQUID CRYSTALS, vol. 43, no. 10, pp. 1422–1430, 2016.
@article{8123470,
  abstract     = {The joint influence of optical and (quasi-)static electric fields on the orientation of liquid crystal gives rise to peculiar effects. In this article we report on the generation of transient domains in liquid crystals, which are an order of magnitude larger than the size of the optical field profile. The formation of such a domain is due to the fact that the initially present optical field reverses the pre-tilt, and the voltage that is then applied gives rise to an amplification of the tilt angle. The resulting reorientation of the director strongly depends on the starting conditions of the preliminary present optical field. We demonstrate different switching conditions, depending on the relation between the incident angle of the beam and the pre-tilt angle. The resulting refractive index profiles give rise to lensing effects.},
  author       = {Nersesyan, Varsenik and Brans, Toon and Beunis, Filip and Drampyan, Rafael and Beeckman, Jeroen and Neyts, Kristiaan},
  issn         = {1366-5855},
  journal      = {LIQUID CRYSTALS},
  keywords     = {nonlinearity,Gaussian beam,Optical reorientation,domain wall,nematic liquid crystal,DISPLAYS,SOLITONS,DEFECTS,OPTICS,PHASE},
  language     = {eng},
  number       = {10},
  pages        = {1422--1430},
  title        = {Light-controlled reorientation of nematic liquid crystal driven by an electric field},
  url          = {http://dx.doi.org/10.1080/02678292.2016.1178350},
  volume       = {43},
  year         = {2016},
}

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