CHARACTERIZATION OF AN ACRYLAMIDE-BASED DRY PHOTOPOLYMER HOLOGRAPHIC RECORDING MATERIAL

Recent work on an acrylamide-based photopolymer holographic recording medium is presented. The lifetime of recorded gratings is improved by the addition of cross-linking monomers. Shelf life is also improved. T he effects of various constituents of the photosensitive material are studied to determine an optimum composition, and five xanthene dyes ar e compared as possible sensitizers for the system. With the most sensi tive dye and optimum concentrations of the other constituents an impro ved formulation is presented with high sensitivity and very high diffr action efficiency. The new formulation also works well in reflection m ode.