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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 26 — Dec. 20, 2010
  • pp: 26959–26964

Optical properties of one-dimensional photonic crystal with a twisted-nematic defect layer

Yu-Ting Lin, Wen-Yang Chang, Chong-Yin Wu, Victor Ya. Zyryanov, and Wei Lee  »View Author Affiliations


Optics Express, Vol. 18, Issue 26, pp. 26959-26964 (2010)
http://dx.doi.org/10.1364/OE.18.026959


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Abstract

Spectral properties of an electrically tunable one-dimensional photonic crystal infiltrated with a twisted-nematic liquid crystal (PC/TN) are investigated. Two mesogenic materials with dissimilar optical anisotropies are examined for constituting the central defect layer. With the TN alignment of the defect layer embedded in the dielectric multilayers, the defect modes not only shift with the applied voltage but also switch between two major modes when the linear polarization angle of the incident light is altered. The superposition of the mixed-mode TN (MTN) and the photonic bandgap brings out a tremendous undulation in all range of the transmission spectrum. The defect modes falling at the centers of the MTN spectral humps are allowed to intensely transmit while the others are suppressed. As a result, we propose a monochromatic selector constructed by such a PC/MTN device with electrical tunability.

© 2010 OSA

OCIS Codes
(160.3710) Materials : Liquid crystals
(230.3720) Optical devices : Liquid-crystal devices
(230.5298) Optical devices : Photonic crystals

ToC Category:
Optical Devices

History
Original Manuscript: August 18, 2010
Revised Manuscript: October 7, 2010
Manuscript Accepted: November 22, 2010
Published: December 8, 2010

Citation
Yu-Ting Lin, Wen-Yang Chang, Chong-Yin Wu, Victor Ya. Zyryanov, and Wei Lee, "Optical properties of one-dimensional photonic crystal with a twisted-nematic defect layer," Opt. Express 18, 26959-26964 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-26-26959


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