Electrically controlled spectra of a multilayer photonic crystal with a central twisted-nematic defect

Yu Ting Lin*, Victor Ya Zyryanov, Wei Lee

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Transmittance spectra of a twisted-nematic liquid-crystal defect layer infiltrated in a one-dimensional photonic crystal are investigated in this paper. With the electrically controllable defect layer, the defect modes can be tuned with external voltage. Three different polarization angles are applied, yielding the E-, O-, and M-mode conditions. The M-mode twisted-nematic alignment leads to a series of independent defect modes that can be assigned to E- and O-modes. As an analyzer is utilized to obtain a crossed-polarizer scheme, the interplay between the photonic crystal and the mixed-mode twisted nematic liquid crystal causes the transmission spectrum to be distinctive from usual. We propose that this combination can be used as a very-narrow-band monochromatic selector with both wavelength and intensity tunability.

Original languageEnglish
Title of host publication2010 Photonics Global Conference, PGC 2010
DOIs
StatePublished - 1 Dec 2010
Event2010 Photonics Global Conference, PGC 2010 - Orchard, Singapore
Duration: 14 Dec 201016 Dec 2010

Publication series

Name2010 Photonics Global Conference, PGC 2010

Conference

Conference2010 Photonics Global Conference, PGC 2010
CountrySingapore
CityOrchard
Period14/12/1016/12/10

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    Lin, Y. T., Zyryanov, V. Y., & Lee, W. (2010). Electrically controlled spectra of a multilayer photonic crystal with a central twisted-nematic defect. In 2010 Photonics Global Conference, PGC 2010 [5706122] (2010 Photonics Global Conference, PGC 2010). https://doi.org/10.1109/PGC.2010.5706122