High-performance photopolymers for recording transmission/reflection holographic gratings

High-performance photopolymers are the key to promote the development of holographic optical waveguides in the field of AR. In this study, through introducing high refractive index monomers and low refractive index fluoroelastomers into the formulation of a photopolymer, both transmission and reflection volume holographic gratings (VHGs) with high Δn can be recorded. In addition, the transmittance of the VHGs within 400~800 nm can reach 96% after photobleaching. The results indicate the photopolymer has great application potential to prepare VHGs for AR.