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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 14, Iss. 3 — Feb. 6, 2006
  • pp: 1236–1242

Tuning the photonic band gap in cholesteric liquid crystals by temperature-dependent dopant solubility

Yuhua Huang, Ying Zhou, Charlie Doyle, and Shin-Tson Wu  »View Author Affiliations


Optics Express, Vol. 14, Issue 3, pp. 1236-1242 (2006)
http://dx.doi.org/10.1364/OE.14.001236


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Abstract

We have investigated the physical and optical properties of the left-handed chiral dopant ZLI-811 mixed in a nematic liquid crystal (LC) host BL006. The solubility of ZLI-811 in BL006 at room temperature is ~24 wt%, but can be enhanced by increasing the temperature. Consequently, the photonic band gap of the cholesteric liquid crystal (CLC) mixed with more than 24 wt% chiral dopant ZLI-811 is blue shifted as the temperature increases. Based on this property, we demonstrate two applications in thermally tunable band-pass filters and dye-doped CLC lasers.

© 2006 Optical Society of America

OCIS Codes
(140.3300) Lasers and laser optics : Laser beam shaping
(160.3710) Materials : Liquid crystals
(230.3720) Optical devices : Liquid-crystal devices

ToC Category:
Optical Devices

History
Original Manuscript: December 13, 2005
Revised Manuscript: January 14, 2006
Manuscript Accepted: January 19, 2006
Published: February 6, 2006

Citation
Yuhua Huang, Ying Zhou, Charlie Doyle, and Shin-Tson Wu, "Tuning the photonic band gap in cholesteric liquid crystals by temperature-dependent dopant solubility," Opt. Express 14, 1236-1242 (2006)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-14-3-1236


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References

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