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arXiv · 1912.00368

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

Vladimir A. Gunyakov·Mikhail N. Krakhalev·Ivan V. Timofeev·Victor Ya. Zyryanov·Vasily F. Shabanov
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Abstract

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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Vladimir A. Gunyakov, Mikhail N. Krakhalev, Ivan V. Timofeev, Victor Ya. Zyryanov, Vasily F. Shabanov. 2019-12-01. Optical modes of multilayered photonic structure containing nematic layer with abnormal electroconvective rolls. https://doi.org/10.1016/j.optmat.2019.109630

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