Тип публикации: статья из журнала
Год издания: 2018
Идентификатор DOI: 10.1080/02678292.2017.1416504
Ключевые слова: Cholesteric, ionic surfactant, anchoring transition, modulated hybrid-aligned cholesteric layer, diffraction grating
Аннотация: Reorientation of cholesteric liquid crystal induced by the electrically controlled ionic modification of surface anchoring within the cell with confinement ratio exceeding 1 has been studied. The change of homeotropic surface anchoring to the planar one on the electrode-anode substrate under the action of DC voltage causes the formПоказать полностьюation of the modulated hybrid-aligned cholesteric layer in the cell. Optical texture of the liquid crystal layer with such an orientation structure is the linear periodic stripes. Homogeneity of emerging optical texture depending on the confinement ratio as well as on the prehistory of voltage application has been considered. It has been found that the ionic modification of surface anchoring results in total transformation of the diffraction pattern observed after the laser beam passing through the sample. [GRAPHICS]
Журнал: LIQUID CRYSTALS
Выпуск журнала: Vol. 45, Is. 8
Номера страниц: 1129-1136
ISSN журнала: 02678292
Место издания: ABINGDON
Издатель: TAYLOR & FRANCIS LTD