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Local hologram recording on photothermoplastic materials: applications in optical information processing

Developed method of local thermoplastic recording with IR-laser heating provides qualitative phase holograms registration. Fourier-hologram registration in frequency plane with low spatial frequency filtration is obtained. The possibility of linear regime of the holograms recording on photothermoplastic material is shown. Also, the holograms recording on photothermoplastic material with multiplexing by using developed simultaneous method is demonstrated. Using this approach holographic photothermoplastic disk with two-dimensional fourier-holograms registration is realized. It supplies high storage capacity and information transfer rate. The main advantage of holographic disk with thermoplastic recording using in such implementations as correlator, optical neural network and associative memory are shown.