摘要: The characteristics of phase holograms written into photochromic materials are treated theoretically. A response function is defined and evaluated for special cases practical interest. This describes the basic material response, including nonlinear effects varying absorption during writing process saturation. holographic then in terms function. scattering efficiency gratings material. results presented a form that relates properties to properties. Several detail, it shown how can be used estimate any given as recording medium holograms.