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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 13, Iss. 13 — Jun. 27, 2005
  • pp: 5024–5029

All-optical switching in a nematic liquid crystal twist cell

Jessica Merlin, Elysa Chao, Mark Winkler, Kenneth D. Singer, Platon Korneychuk, and Yuri Reznikov  »View Author Affiliations


Optics Express, Vol. 13, Issue 13, pp. 5024-5029 (2005)
http://dx.doi.org/10.1364/OPEX.13.005024


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Abstract

Continuous wave photorefractive-like all-optical switching was demonstrated using a twisted nematic liquid crystal cell composed of the liquid crystal 5CB (4-pentyl-4’-cyanobiphenyl) with polyvinyl alcohol (PVA) aligning layers. The nonlinear optical effect involved is due to optical control of surface charge on the polyvinyl alcohol alignment layer. The cell exhibits strong optical control of the Friedericksz transition by an argon ion laser. A mechanism is proposed involving the modulation of the charge double layer by photoinduced charge. Optical limiting in the milliwatt range was observed.

© 2005 Optical Society of America

OCIS Codes
(190.4360) Nonlinear optics : Nonlinear optics, devices
(190.4710) Nonlinear optics : Optical nonlinearities in organic materials

ToC Category:
Research Papers

History
Original Manuscript: May 25, 2005
Revised Manuscript: June 14, 2005
Published: June 27, 2005

Citation
Jessica Merlin, Elysa Chao, Mark Winkler, Kenneth Singer, Platon Korneychuk, and Yuri Reznikov, "All-optical switching in a nematic liquid crystal twist cell," Opt. Express 13, 5024-5029 (2005)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-13-13-5024


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References

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