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Updated: Jun 16, 2026

Measuring Magnetically-Tuned Ferroelectric Polarization in Liquid Crystals
Published on: August 15, 2018
Magnetic-field tunable defect modes in a photonic-crystal/liquid-crystal cell
Victor Ya Zyryanov1, Sergey A Myslivets, Vladimir A Gunyakov
1Kirensky Institute of Physics, Krasnoyarsk Scientific Center, SB RAS, Krasnoyarsk, Russia. zyr@iph.krasn.ru
Abstract:
Light transmission spectrum of a multilayer photonic crystal with a central liquid-crystal defect layer placed between crossed polarizers has been studied. Transmittance was varied due to the magnetically induced reorientation of the nematic director from homeotropic to planar alignment. Two notable effects were observed for this scheme: the spectral shift of defect modes corresponding to the extraordinary light wave and its superposition with the ordinary one. As a result, the optical cell allows controlling the intensity of interfering defect modes by applied magnetic field.
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