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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 22, Iss. 10 — May. 19, 2014
  • pp: 12133–12138

Bistable light-driven π phase switching using a twisted nematic liquid crystal film

Chun-Wei Chen, Cheng-Chang Li, Hung-Chang Jau, Chun-Hong Lee, Chun-Ta Wang, and Tsung-Hsien Lin  »View Author Affiliations


Optics Express, Vol. 22, Issue 10, pp. 12133-12138 (2014)
http://dx.doi.org/10.1364/OE.22.012133


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Abstract

A light-activated optical phase switch was developed, exploiting the conversion between left-handed and right-handed twisted nematic liquid crystals. Theoretical and experimental analyses revealed that the handedness inversion of the twisted nematic film altered the optical phase of the output waves by π. Herein, the competition between the helical twisting powers of the two reverse-handed chiral dopants determines the handedness of the twisted nematic film. The photo-responsibility and the bistability are attributed to the azobenzene chromophores in one of the chiral additives.

© 2014 Optical Society of America

OCIS Codes
(120.5060) Instrumentation, measurement, and metrology : Phase modulation
(230.1150) Optical devices : All-optical devices
(230.3720) Optical devices : Liquid-crystal devices

ToC Category:
Optical Devices

History
Original Manuscript: March 31, 2014
Revised Manuscript: May 4, 2014
Manuscript Accepted: May 5, 2014
Published: May 12, 2014

Citation
Chun-Wei Chen, Cheng-Chang Li, Hung-Chang Jau, Chun-Hong Lee, Chun-Ta Wang, and Tsung-Hsien Lin, "Bistable light-driven π phase switching using a twisted nematic liquid crystal film," Opt. Express 22, 12133-12138 (2014)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-22-10-12133


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