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Title: Materials research for holographic recording : Report No. 3, Hardened gelatin holographic recording materials
Authors: Gladden, James W.
Eastes, John W.
Keywords: Diazo
Diazo gelatin
Dichromated gelatin
Holographic recording materials
Photosensitive materials
Silver halide (sensitized) gelatin
Publisher: U.S. Army Engineer Topographic Laboratories.
Engineer Research and Development Center (U.S.)
Series/Report no.: ETL ; 0197.
Description: Technical report
Abstract: The results of a study of four different hardened gelatin holographic recording materials are reported. These are the dichromated, diazo, diazo resin, and silver halide (sensitized) gelatins. The report concludes that of the four photosensitive processes studied, the silver halide (sensitized) gelatin process offers the most promising process characteristics. The silver halide gelatin process is a new holographic recording process that can be used to prepare phase volume holograms in hardened gelatin. The process uses a reversal bleach that dissolves the developed silver metal image while further crosslinking the gelatin in the vicinity of the silver image. Upon fixing and with dehydration of the resulting gelatin hologram, one obtains recordings similar to those produced by the dichromated gelatin process. This is accomplish with exposures on the order of 200 to 500 μ.J/cm2 at 514.5 nm in a silver halide emulsion that has a panchromatic response. Furthermore, because the hologram has no silver halide present, the hologram does not exhibit the printout phenomena characteristic of bleached holograms
Rights: Approved for public release; distribution is unlimited.
Appears in Collections:Technical Report

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