Silver halide sensitized gelatin derived from BB-640 holographic emulsion

Neipp, Cristian; Pascual, Inmaculada

doi:10.1364/ao.38.001348

Cited by 23 publications

(13 citation statements)

References 21 publications

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“…11 Details of the developer and bleach formulas are listed in Table 2. The results obtained for bleached holograms can be compared with those obtained with other procedures.…”

Section: Methodsmentioning

confidence: 99%

Effects of overmodulation in fixation-free rehalogenating bleached holograms

Neipp¹,

Pascual²

2001

Appl. Opt.

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The mechanism for hologram formation by fixation-free rehalogenating bleaching has been treated by several authors. Experiments carried out with Kodak and Agfa photographic plates have led to the conclusion that the transfer of material from the exposed to the unexposed zones is the main mechanism that drives the process. We show that when BB-640 emulsion is used in the recording of holograms by means of fixation-free rehalogenating bleaching, the mechanism for the transfer of material from exposed to unexposed zones is efficient enough to create high refractive-index modulations. We also comment on the overmodulation effects, which result in a decrease in diffraction efficiency.

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“…11 Details of the developer and bleach formulas are listed in Table 2. The results obtained for bleached holograms can be compared with those obtained with other procedures.…”

Section: Methodsmentioning

confidence: 99%

Effects of overmodulation in fixation-free rehalogenating bleached holograms

Neipp¹,

Pascual²

2001

Appl. Opt.

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“…In a previous work we evaluated the in¯uence of the grain size and the silver-halide concentration on the scattering produced by the emulsion at the recording [18]. By using a ® gure of merit de® ned by Phillips, we found that the amount of light scattered by the emulsion at the recording is less for BB-640 plates than that for Agfa 8E75 HD plates.…”

Section: Previous Considerationsmentioning

confidence: 98%

Optimization of a fixation-free rehalogenating bleach for BB-640 holographic emulsion

Neipp

Pascual

Belendez

2000

Journal of Modern Optics

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Fixation-free rehalogenating bleaching is an interesting for the production of phase holograms. The shrinkage of the emulsion is reduced in comparison with other bleaching methods (reversal bleaching or rehalogenating bleaching with ® xation). In this paper we present experimental results for ® xation-free rehalogenating bleached holograms derived from the novel BB-640, a red-sensitive ultra-® ne grain emulsion from Holographic Recording Technologies. The in¯uence of the potassium bromide concentration in the bleach solution on the ® nal quality of the holograms is also studied. The concentrations of the diå erent components of the bleach solution are adjusted to obtain the highest values of diå raction eae ciency. We show that really high diå raction eae ciencies can be obtained, as high as 84%, when ® xation-free rehalogenating bleached holograms are recorded on BB-640 plates.

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“…In a previous work we evaluated the influence of the grain size and the silver-halide concentration on the scattering produced by the emulsion at the recording [18]. By using a figure of merit defined by Phillips, we found that the amount of light scattered by the emulsion at the recording is less for BB-640 plates than that for Agfa 8375 H D plates.…”

Section: Previous Considerationsmentioning

confidence: 98%

Optimization of a fixation-free rehalogenating bleach for BB-640 holographic emulsion

Neipp

Pascual

2000

Journal of Modern Optics

View full text Add to dashboard Cite

Fixation-free rehalogenating bleaching is an interesting for the production of phase holograms. The shrinkage of the emulsion is reduced in comparison with other bleaching methods (reversal bleaching or rehalogenating bleaching with fixation). In this paper we present experimental results for fixation-free rehalogenating bleached holograms derived from the novel BB-640, a red-sensitive ultra-fine grain emulsion from Holographic Recording Technologies. The influence of the potassium bromide concentration in the bleach solution on the final quality of the holograms is also studied. The concentrations of the different components of the bleach solution are adjusted to obtain the highest values of diffraction efficiency. We show that really high diffraction efficiencies can be obtained, as high as 84%, when fixation-free rehalogenating bleached holograms are recorded on BB-640 plates.

show abstract

Silver halide sensitized gelatin derived from BB-640 holographic emulsion

Cited by 23 publications

References 21 publications

Effects of overmodulation in fixation-free rehalogenating bleached holograms

Effects of overmodulation in fixation-free rehalogenating bleached holograms

Optimization of a fixation-free rehalogenating bleach for BB-640 holographic emulsion

Optimization of a fixation-free rehalogenating bleach for BB-640 holographic emulsion

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