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Published on: August 27, 2012
Dichromated Gelatin in Optics
Sergio Calixto1, Mariana Alfaro-Gomez2
1Centro de Investigaciones en Óptica, Loma del Bosque 115, León 37150, Mexico.
Abstract:
Dichromated Gelatin (DCG) was first used in optics in 1872 by Lord Rayleigh. Then, in 1968, Shankoff suggested its use as a photosensitive material to record interference diffraction gratings and holograms. Diffraction efficiencies of nearly 100% were achieved. This review discusses some physical and chemical characteristics of DCG films; the fabrication methods of DCG films; and some of the applications of DCG films in holography, holography in real time, solar concentrators, optical elements, and relative humidity sensors.
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