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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 16 — Aug. 15, 2014
  • pp: 4679–4682

Photo-aligned ferroelectric liquid crystals in microchannels

Daniel Budaszewski, Abhishek K. Srivastava, Alwin M. W. Tam, Tomasz R. Wolinski, Vladimir G. Chigrinov, and Hoi-Sing Kwok  »View Author Affiliations


Optics Letters, Vol. 39, Issue 16, pp. 4679-4682 (2014)
http://dx.doi.org/10.1364/OL.39.004679


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Abstract

In this Letter we disclose a method to realize a good alignment of ferroelectric liquid crystals (FLCs) in microchannels, based on photo-alignment. The sulfonic azo dye used in our research offers variable anchoring energy depending on the irradiation energy and thus provides good control on the FLC alignment in microchannels. The good FLC alignment has been observed only when anchoring energy normalized to the capillary diameter is less than the elastic energy of the FLC helix. The same approach can also be used for the different microstructures viz. photonic crystal fibers, microwaveguides, etc. which gives an opportunity for designing a photonic devices based on FLC.

© 2014 Optical Society of America

OCIS Codes
(060.2310) Fiber optics and optical communications : Fiber optics
(160.3710) Materials : Liquid crystals
(230.3720) Optical devices : Liquid-crystal devices
(060.5295) Fiber optics and optical communications : Photonic crystal fibers

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: June 6, 2014
Revised Manuscript: July 9, 2014
Manuscript Accepted: July 9, 2014
Published: August 5, 2014

Citation
Daniel Budaszewski, Abhishek K. Srivastava, Alwin M. W. Tam, Tomasz R. Wolinski, Vladimir G. Chigrinov, and Hoi-Sing Kwok, "Photo-aligned ferroelectric liquid crystals in microchannels," Opt. Lett. 39, 4679-4682 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-16-4679

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