Optical modes of multilayered photonic structure containing nematic layer with abnormal electroconvective rolls

Optical modes of a multilayered photonic structure with the twisted nematic liquid crystal as a defect layer have been investigated. The electroconvective flow in the nematic makes a spatially periodic structure in the form of abnormal rolls. Non-adiabatic propagation of polarized light in the defec...

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Bibliographic Details
Published in:arXiv.org 2019-12
Main Authors: Gunyakov, Vladimir A, Krakhalev, Mikhail N, Timofeev, Ivan V, Victor Ya Zyryanov, Shabanov, Vasily F
Format: Article
Language:English
Subjects:
Adiabatic flow
Crystal defects
Crystal structure
Liquid crystals
Nematic crystals
Periodic structures
Photonic crystals
Polarized light
Rolls
Wave diffraction
Wave propagation
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Summary:Optical modes of a multilayered photonic structure with the twisted nematic liquid crystal as a defect layer have been investigated. The electroconvective flow in the nematic makes a spatially periodic structure in the form of abnormal rolls. Non-adiabatic propagation of polarized light in the defect layer causes unique features of the optical modes corresponding to the ordinary \(o\)-waves. The decay of these modes has been demonstrated with increasing voltage due to the effect of cross-polarization diffraction loss. The modes short-wave shift resulting from the contribution of the non-adiabatic geometric phase to the total phase delay of the wave during a round-trip propagation through the photonic structure has been found both experimentally and numerically
ISSN:2331-8422
DOI:10.48550/arxiv.1912.00368