Оптические свойства ячейки нематического жидкого кристалла с планарным и периодически ориентационным граничными условиями

<jats:p>The ability of a nematic liquid crystal (NLC) cell with planar and periodical orientational boundary conditions to diffract a light beam has been theoretically investigated. To create a continuously rotating structure, a small amount of cholesteric liquid crystal must be added to the NLC. Unlike known polarization gratings, diffraction on this cell can result in the absence of zero-order diffraction, i.e., 100% ± 1 orders of right- and left-elliptical (or even circular) polarized beams. The unique polarization properties of the cell with planar and periodical orientational boundary conditions can be used to develop a real-time photopolarimeter and circular dichroism spectrograph without artifacts.</jats:p>