Contribution of Impurity Ions to Spatial-Temporal Distribution of Local Electric Field in Nematic Liquid Crystal Cell
Authors
Alina Maratovna Gavrilyak
South Ural State University, Chelyabinsk
Maksim Vitalievich Gavrilyak
South Ural State University, Chelyabinsk; Institute of Electrophysics, Ural Branch of the Russian Academy of Sciences, Ekaterinburg
Viktor Aleksandrovich Boronin
Ural Branch of the Russian Academy of Sciences, Ekaterinburg; South Ural State University, Chelyabinsk
Fedor Valerievich Podgornov
South Ural State University, Chelyabinsk
Nematic liquid crystals, impurity ions, blocking electrodes, nonlinear distortions, effective permittivity, local electric field
Abstract
The influence of impurity ions on the spatiotemporal distribution of the local electric field in a planar nematic liquid crystal (NLC) cell with blocking electrodes has been investigated. Numerical simulation of the switching dynamics of the NLC director has been performed using the Poisson–Nernst–Planck and nonlinear Ericksen–Leslie equations at the driving electrical voltage exceeding the Fredericksz threshold. The authors take into account the influence of the effective permittivity associated with the reorientation of the NLC director on the dynamics of electrodiffusion of impurity ions. Spectral analysis of the local electric field reveals the presence of higher harmonics caused by the spatial inhomogeneity of ionic impurity distribution. It has been proven that the presence of these harmonics in the spectral composition of the local electric field leads to a nonlinearity of the NLC director switching dynamics.
Author Biographies
Alina Maratovna Gavrilyak, South Ural State University, Chelyabinsk
Post-graduate Student, Assistant, Department of Optoinformatics
Maksim Vitalievich Gavrilyak, South Ural State University, Chelyabinsk; Institute of Electrophysics, Ural Branch of the Russian Academy of Sciences, Ekaterinburg
Assistant, Department of Optoinformatics; Junior Research Fellow, Laboratory of Nonlinear Optics
Viktor Aleksandrovich Boronin, Ural Branch of the Russian Academy of Sciences, Ekaterinburg; South Ural State University, Chelyabinsk
Post-graduate Student, Junior Research Fellow, Laboratory of Nonlinear Optics; Assistant, Optoinformatics Department
Fedor Valerievich Podgornov, South Ural State University, Chelyabinsk
Cand. Sc. (Physics and Mathematics), Associate Professor, Physics of Nanoscale Systems Department
