Holographic efficiency and mechanisms of diffraction of light in holograms

A new parameter, called the holographic efficiency, was introduced for estimating the performance of holographic materials under real experimental conditions. The efficiency of several mass-produced and new photographic materials was determined at different spatial frequencies. The results gave information about the relative influence of the diffraction processes on the holographic efficiency of photographic materials due to variation of the amplitude transmission, surface relief, and Bragg diffraction.