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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 50, Iss. 11 — Apr. 10, 2011
  • pp: 1606–1609

Pinning effect on the photonic bandgaps of blue-phase liquid crystal

Hu-Yi Liu, Chun-Ta Wang, Chiao-Yun Hsu, and Tsung-Hsien Lin  »View Author Affiliations


Applied Optics, Vol. 50, Issue 11, pp. 1606-1609 (2011)
http://dx.doi.org/10.1364/AO.50.001606


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Abstract

This study demonstrates the surface alignment induced pinning effects on blue phases. The morphologies of blue-phase platelets in a nonaligned cell become less uniform, and the photonic bandgap shifted over 120 nm during the cooling process. Comparing the different boundary conditions, the anchoring forces provide by homogeneous alignment can pin the blue-phase platelets, confine the photonic bandgap variation, and increase uniformity of the blue phase. This study also examines the pinning effect by the patternable photoalignment technique. Boundary anchoring forces have a significant effect on the morphology and photonic characteristics of the blue phase, making them applicable to practical applications.

© 2011 Optical Society of America

OCIS Codes
(160.3710) Materials : Liquid crystals
(230.5298) Optical devices : Photonic crystals

ToC Category:
Materials

History
Original Manuscript: November 15, 2010
Manuscript Accepted: January 12, 2011
Published: April 7, 2011

Citation
Hu-Yi Liu, Chun-Ta Wang, Chiao-Yun Hsu, and Tsung-Hsien Lin, "Pinning effect on the photonic bandgaps of blue-phase liquid crystal," Appl. Opt. 50, 1606-1609 (2011)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-50-11-1606

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