Reorientation dynamics of a dual-frequency nematic single crystal with quasi-homeotropic structure

Коншина Е.А., Иванова Н.Л., Парфенов П.С., Федоров М.А. Динамика переориентации двухчастотного нематического жидкого кристалла с квазигомеотропной структурой // Оптический журнал. 2010. Т. 77. № 12. С. 45–51.

Konshina E.A., Ivanova N.L., Parfenov P.S., Fedorov M.A. Reorientation dynamics of a dual-frequency nematic single crystal with quasi-homeotropic structure [in Russian] // Opticheskii Zhurnal. 2010. V. 77. № 12. P. 45–51.

E. A. Konshina, N. L. Ivanova, P. S. Parfenov, and M. A. Fedorov, "Reorientation dynamics of a dual-frequency nematic single crystal with quasi-homeotropic structure," Journal of Optical Technology. 77(12), 770-775 (2010). https://doi.org/10.1364/JOT.77.000770

This paper discusses the features of the switching dynamics of the phase lag of light by 2π and 4π in cells with a dual-frequency nematic liquid crystal as a result of bend and splay deformation of layers with oblique homeotropic orientation by means of an electric field with frequency 30kHz and as a result of relaxation when a low-frequency field of 1kHz is applied. The slope angle of the director was varied from 36° to 84° by means of cerium oxide layers obliquely deposited in vacuum. Studies of the surface texture of the orienting layers by means of atomic-force microscopy showed that this is achieved as a result of variation of the surface nanotexture.

The research was supported by the Federal Science and Innovation Agency, Federal special purpose program, state contract No. 02.740.11.0390.