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Proceedings Paper

Influence of some parameters on grating structure and diffraction efficiency in red-sensitive dichromated gelatin (DCG)
Author(s): Thomas Rimpler; Guenther K.G. Wernicke; Hartmut Gruber
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Paper Abstract

Dichromated gelatin with methylene blue is red sensitive. Tetramethylguanidine intensifies this red sensitivity. Such an emulsion was used to produce holographic plates to inscribe a transmission grating with a Kr+-laser and to investigate some procedure and development parameters on the structure and diffraction efficiency. Ratio and concentration of prehardener, fixer, sensitizing solution, and pH-dependence were investigated. For the development, a six-step development process gave the best results. Influence of room humidity and storage time are important. The optimized process needs 3 hours from the first step to the finished hologram grating. More than 70% diffraction efficiency is possible. The coating method allows for the making of layers of different thickness and therefore volume effects can be observed.

Paper Details

Date Published: 17 February 1995
PDF: 5 pages
Proc. SPIE 2333, Fifth International Symposium on Display Holography, (17 February 1995); doi: 10.1117/12.201885
Show Author Affiliations
Thomas Rimpler, Humboldt Univ. zu Berlin (Germany)
Guenther K.G. Wernicke, Humboldt Univ. zu Berlin (Germany)
Hartmut Gruber, Humboldt Univ. zu Berlin (Germany)

Published in SPIE Proceedings Vol. 2333:
Fifth International Symposium on Display Holography
Tung H. Jeong, Editor(s)

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