Comparison of the effects of two bleaching agents on the recording of phase holograms in silver halide emulsions

Optical densities before bleaching and final Lin-curves of plane-wave phase holograms recorded in Agfa-Gevaert 8E75HD emulsions were determined for combinations of the AAC developer with a solvent bleach (R-9) and a (fixation-free) rehalogenating bleach (R-10). To characterize the processing, the square root of the diffraction efficiency of the processed holograms was related to the amplitude of the optical density modulation obtained at the development step. Sensitivity, linearity and dynamic range of the processes could thereby be compared directly.