Silver Halide Sensitized Gelatin As A Holographic Storage Medium

A. Fimia; I. Pascaul; A. Belendez

doi:10.1117/12.968845

16 January 1988 Silver Halide Sensitized Gelatin As A Holographic Storage Medium

A. Fimia, I. Pascaul, A. Belendez

Proceedings Volume 0952, Laser Technologies in Industry; (1988) https://doi.org/10.1117/12.968845
Event: Laser Technologies in Industry, 1988, Porto, Portugal

Abstract

Silver halide sensitized gelatin is one of the most promising techniques for the manufacturing of transmision holographic optical elements. These techniques combine the relatively high sensitivity of photographic material with the low scattering and high light-stability of dichromated gelatin. The influences of the developer and the bleaching in the difraction efficiency and noise is analized starting with Agfa 8E 75 HD plates. According to P. Hariharan,5 we analized the processing steps and this show that the developer action influences on the noise level and the modulation transfer function. The developer of the type PAAP produces better resolution and less noise Ievel than the developer D-19. The bleaching action is related to the difraction efficency and the hardering level of the gelatin. The hardering action is promoted by trivalent chromium ions which are generated in the vicinity of the oxidized silver grains and controled by the ratio concentration to the Cr 13 ions and Br- ions of the bleaching bath. The measurements of the difraction efficiency in the different steps of the processing give us information about the mechanism of hologram formation.

Citation Download Citation

A. Fimia, I. Pascaul, and A. Belendez "Silver Halide Sensitized Gelatin As A Holographic Storage Medium", Proc. SPIE 0952, Laser Technologies in Industry, (16 January 1988); https://doi.org/10.1117/12.968845

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