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Journal of the Optical Society of America B

Journal of the Optical Society of America B


  • Editor: Henry van Driel
  • Vol. 27, Iss. 2 — Feb. 1, 2010
  • pp: 204–207

Effective medium analysis for optical control of laser tuning in a mixture of azo-nematics and cholesteric liquid crystal

Boyoung Kang, Hyunhee Choi, Mi-Yun Jeong, and J. W. Wu  »View Author Affiliations

JOSA B, Vol. 27, Issue 2, pp. 204-207 (2010)

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The selective reflection band structure of a mixture composed of azo-nematics and cholesteric liquid crystal (azo-based CLC) is investigated as an effective single optical medium. Berreman’s 4 × 4 matrix method is adopted to analyze the photoisomerization-induced changes in the azo-based CLC by identifying the effective refractive indices as well as the helical pitch. In a laser dye-doped azo-based CLC, a stable reversible tuning of laser wavelengths at each domain of the two-dimensional laser array is demonstrated.

© 2010 Optical Society of America

OCIS Codes
(140.3290) Lasers and laser optics : Laser arrays
(160.3710) Materials : Liquid crystals

ToC Category:
Lasers and Laser Optics

Original Manuscript: August 18, 2009
Revised Manuscript: November 18, 2009
Manuscript Accepted: November 27, 2009
Published: January 8, 2010

Boyoung Kang, Hyunhee Choi, Mi-Yun Jeong, and J. W. Wu, "Effective medium analysis for optical control of laser tuning in a mixture of azo-nematics and cholesteric liquid crystal," J. Opt. Soc. Am. B 27, 204-207 (2010)

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