Abstract
In this work a photoinduced properties of azo-dye doped gelatine films were studied. Gelatine is the oldest polymeric matrix, which is used in holography and photography. Preparation of these films is simple and cheap, but ingredients aren't toxic. Films were synthesized using gelatine and azo-dye -Disperse Red13. Non- aqueous solvents - dimethyl sulfoxide and acetic acid, were used. Films were coated on glass plates using applicator with layer thickness 30, 60, 90 μm and then were heated in vacuum chamber. Azo-dyed gelatine films were illuminated by 532nm laser radiation. Photoinduced birefringence and photoinduced dichroism dependence on films ingredients ratio, laser light intensity and sample treatment temperature were investigated. Holographic recording on these films was performed in dependence on recording beam intensity and polarization. Volume polarization gratings and direct surface relief formation were studied by measuring diffraction efficiency with 660nm diode laser radiation. The obtained surface relief was investigated by AFM.
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