Research of recording processes of transmitted holographic gratings in absorbent photopolymeric materials

In this work we created analytical model of dynamics of nonlinear process of recording and reading the hologram in photopolymer media taking into account photoinduced absorption of photopolymer. The analytical model is based on the equations Lorentz-Lorenz and relations of the theory photopolymerization. Photoinduced absorption has been described with the help of the logarithmic function on the base of experimental data. Then experiments investigation was conducted. The record of the holograms was conducted under convergence angle 30degrees between laser beams. The data of experiment and the analytical model have allowed determining basic physical parameters of photopolymers. The researched photopolymer was made in Institute of Organic Chemistry of the Siberian Separation of a Russian Academy of Sciences (Novosibirsk).