Orientation dependencies of diffraction efficiency of the dynamic holographic corrector recorded in optically addressed spatial light modulator with the ferroelectric liquid crystal

摘要

The results are reported of theoretical and experimental studies of the dependence of diffraction efficiency of hologram-corrector upon an orientation of a diffraction grating vector and of the polarization of the reading-out radiation with respect to the normal to the smectic layers. The gratings recorded using DHF-effect and Clark-Lagerwall effect were studied. The conditions were determined when the dependence of diffraction efficiency vs. radiation polarization is weak. It was found out that in the hologram- corrector, using the polymer photoconductor, the diffraction efficiency is significantly dependent of the vector of grating orientation, while for the hologram-correctors using a-Si:C:H photoconductor this dependence is practically absent.