Diffractive and interferometric methods to characterize photopolymers with liquid crystal molecules as holographic recording material

Abstract

We present two methods, interferometry at the zero spatial frequency limit and analysis of diffracted orders for very low spatial frequency gratings, to characterize photopolymers with dispersed nematic liquid crystals. These methods provide us with real time information about the transformations taking place inside the material during recording.

Keywords

• diffraction and gratings
• holography
• holographic recording materials