Diffusion parameters estimation of holographic memories based in PVA/acrylamide photopolymer

摘要: The hard research about the models to predict and understand behaviour of photopolymers have as a results many interesting works for 2-dimensional cases. These studies permits obtain mains parameters that governs process in with maximum thickness 200 μm. Historically this materials, dry layers photopolymers, been used attractive devices now new application type material is being developed: holographic memories. main characteristics these are their high (higher than 600 μm). In order optimize original photopolymer composition has changed, then estimation be done. work study made using PVA/Acrylamide around 800 μm thick. values monomer polymer diffusion obtained polymerization rate constant residual calculated too first harmonic constant. validity model evaluated, because materials only few percent initial light arrive depth zones photopolymer.