Polarization influences on the efficiency of noise gratings recorded in silver halide holograms.

Noise gratings in bleached silver halide diffuse-object holograms.

Noise gratings in diffuse-object holograms recorded as volume phase holograms in bleached silver halide emulsion are experimentally analyzed. Measurements of the diffraction efficiency and the noise of the holograms are taken. The experimental results obtained show that there is a drop not only in the diffraction efficiency but also in the noise that is due to the presence of noise gratings.

Diffuse-object holograms in silver halide emulsions: influence of the beam ratio on the efficiency and the signal-to-noise ratio.

The influence of the beam ratio between reference and object beam intensities on the characteristics of diffuse-object holograms recorded as volume phase holograms in bleached silver halide emulsion is experimentally analyzed. Measurements of the diffraction efficiency and the signal-to-noise ratio of the holograms are taken. The experimental results presented show that when the beam ratio incr...

High efficiencies, low noise, and suppression of photochrome effects in bleached silver halide holography.

Interest in bleached photographic gratins and holograms arose as early as 1965.” Several theoretical investigations of photographically generated gratings showed that greatly improved efficiencies could be obtained by elimination of the absorption and reflection inherent in a silver imngc.a*Y This information stimu lated interest in improving diffraction efficiencies by bleaching processes, wi...

Noise sources in silver halide volume diffuse-object holograms

Recording of Diffraction Gratings in Polyvinyl Alcohol/Acrylamide Photopolymers by Pulsed Laser Irradiation

In this communication we present the experimental results obtained when diffraction gratings are stored using pulsed exposure in polyvinyl alcohol/acrylamide photopolymer deposited in a dry film. The influence of the energy of the irradiation pulse was studied and the number of pulses needed to reach maximum diffraction efficiency was obtained. The recording was performed using an holographic c...