Abstract

Diazo (sensitized) gelatins are photosensitive recording materials that, unlike dichromated gelatin, have a long shelf life. Because of their stability, the diazo emulsions have replaced the dichromated colloids used in the photolithographic field and enabled commercialization of presensitized printing plates. We have produced plane wave gratings with peak efficiencies near 67% at an exposure of 625 mJ/cm² and a recording wavelength of 488.0 nm in one diazo recording material. Called diazo salt (sensitized) gelatin, the photosensitive material produces gratings in gelatin by a complex process that we found not to be a function of exposure. The methods used are described.

© 1980 Optical Society of America

Phase holograms formed by silver halide (sensitized) gelatin processing

William R. Graver, James W. Gladden, and John W. Eastes
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Hologram formation with red light in methylene blue sensitized dichromated gelatin

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Improved diffraction efficiency of silver halide (sensitized) gelatin

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Holographic optical elements recorded in silver halide sensitized gelatin emulsions. Part I. Transmission holographic optical elements

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Red sensitivity of dichromated gelatin films

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