Voltage-induced defect mode coupling in a one-dimensional photonic crystal with a twisted-nematic defect layer

Ivan V. Timofeev*, Yu Ting Lin, Vladimir A. Gunyakov, Sergey A. Myslivets, Vasily G. Arkhipkin, Stepan Ya Vetrov, Wei Lee, Victor Ya Zyryanov

*Corresponding author for this work

Research output: Contribution to journalArticle

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Abstract

Defect modes are investigated in a band gap of an electrically tunable one-dimensional photonic crystal infiltrated with a twisted-nematic liquid crystal. Their frequency shift and interference under applied voltage are studied both experimentally and theoretically. We deal with the case where the defect layer thickness is much larger than the wavelength (i.e., the Mauguin condition). It is shown theoretically that the defect modes could have a complex structure with elliptic polarization. Two series of polarized modes are coupled with each other and exhibit an avoided crossing phenomenon in the case of opposite parity.

Original languageEnglish
Article number011705
JournalPhysical Review E - Statistical, Nonlinear, and Soft Matter Physics
Volume85
Issue number1
DOIs
StatePublished - 17 Jan 2012

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