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Volume holograms in liquid photopolymerizable layers

A thermodynamic analysis is conducted for volume-hologram formation processes in the layer formed by a two-component, liquid photopolymerizable composition-contained polymerizable monomer and solvent. The formation of both photochemically stable and unstable holograms by a diffusive recording mechanism can be accounted for in terms of the microheterogeneous character of photopolymerization. The principles of recording medium compositions' formulation are presented.