Studying the Diffraction of Light on Electrically Controlled Multiplexed Multilayer Inhomogeneous Holographic Diffraction Structures Based on Photopolymerizing Compositions with Nematic Liquid Crystals

An analytical model is developed for the diffraction of optical radiation on multiplexed multilayer inhomogeneous diffraction structures formed holographically in photopolymerizing compositions with nematic liquid crystals that have smooth optical inhomogeneity across the thickness of layers. Numerical calculations show that when an electric field with different polarities is applied to the diffraction layers and the readout beam’s azimuth of polarization is varied, a diffracted beam can be transformed with a strong shift in its angular selectivity. This allows the spectral bandwidth to be quadrupled, relative to conventional multilayer diffraction structures.