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Dichromated gelatin holograms: an investigation of their environmental stability

Naik, Goureesh M and Mathur, Arvind and Pappu, Sastry V (1990) Dichromated gelatin holograms: an investigation of their environmental stability. In: Applied Optics, 29 (35). pp. 5292-5297.

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An investigation of the stability of the diffraction efficiency of dichromated gelatin (DCG) holograms has been carried out paying specific attention to coated and baked holograms that are subsequently exposed to high humidity (RH > 60%) environment. The investigation has revealed that (a) the environmental stability of DCG holograms can be considerably improved either by coating or baking; (b) the DCG holograms can be used at temperatures well-above room temperature (for example, as high as $175^0C$) without showing undue detrimental effects regarding their efficiency; and (c) the diffraction efficiency of uncoated and baked holograms can be restored by reprocessing whereas such a thing becomes impossible in coated holograms.

Item Type: Journal Article
Publication: Applied Optics
Publisher: Optical Society of America
Additional Information: Copyright of this article belongs to Optical Society of America.
Keywords: holography;holographic materials;dichromated gelatin.
Department/Centre: Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited: 18 Dec 2007
Last Modified: 19 Sep 2010 04:41
URI: http://eprints.iisc.ac.in/id/eprint/12531

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