Highly nonlinear characteristics of bleached holograms recorded in Agfa 8E75HD plates

Abstract

A novel method for the characterization of the processing of both absorption and phase holograms was proposed. Differently from the previous models, the square root of the diffraction efficiency of the processed hologram was directly related to the amplitude of the optical density modulation obtained at the development step. This characteristic is a good indicator of the degree of nonlinearity of the hologram processing. While the Lin functions of phase hologram re similar to those of absorption holograms, the shape of the proposed function is completely different. Optical density and diffraction efficiency of holograms recorded in Agfa-Gevaert 8E75HD plates and processed with AAC developer and a solvent bleach without fixation step were measured and used for the demonstration of the method.