Characterization of a low-shrinkage photopolymer for holographic data storage

Abstract

The holographic recording properties in thick films of low-shrinkage photopolymer is discussed. Photopolymers are among the most sensitive recording materials, have high dynamic range are favorable for volume holography. Polymerization is generally accompanied by a change in volume, usually shrinkage, resulting in distortion of the stored holograms in grating vector k-space and loss in diffraction efficiency.