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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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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Krakhalev, Mikhail N
Timofeev, Ivan V
Victor Ya Zyryanov
Shabanov, Vasily F
description 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
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subjects Adiabatic flow
Crystal defects
Crystal structure
Liquid crystals
Nematic crystals
Periodic structures
Photonic crystals
Polarized light
Rolls
Wave diffraction
Wave propagation
title Optical modes of multilayered photonic structure containing nematic layer with abnormal electroconvective rolls
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