Full-Color Self-processing Holographic Photopolymers with High Sensitivity in Red - The First Class of Instant Holographic Photopolymers

Abstract

The new holographic photopolymers described herein are based on a cross-linked matrix in which the holographic grating is formed by photopolymerization of guest monomers in an interference pattern of the recording light. Diffusion of monomer, triggered by this photopolymerization, from the dark to the bright fringes of the interference pattern is the key parameter for creating high modulation in refractive index δn during hologram recording. This leads to bright visual volume holograms with high diffraction efficiency. The holographic photopolymers are self-processing, after recording the hologram only (incoherent) light exposure is necessary to bleach the final product and fix the hologram. The full color photopolymers show exceptionally high sensitivity for red laser light (633 nm).