The method of synthesis of photosensitive polyurethanes polymers on glycerine, toluenediisocyanate and Disperse Red 1 base has been described. Two types of polymers with different amount of Disperse Red 1 fragments in macromolecules were compared. Films of the polymers were obtained from solutions in organic solvents on glass substrate. The dry film thickness was in the range of 3,5 - 4.5 μm. The transmission spectrums of the films were studied. Possibility of formation of side product in the process of synthesis was observed. The photobirefringence measurements of polymers films were performed. Surface relief grating (SRG) formation was observed during polarization holographic recording process. A profile of SRG was studied by AFM.
Recently a number of organic and inorganic materials have been studied for direct surface-relief formation during
the exposure process by a light or e-beam. It is very promising for practical application enabling the possibility to
simplify the surface-relief formation technology.
In this report the method of preparation of thin polymer-chalcogenide and polymer-azobenzene composite films is
described, and some features of photoinduced changes of optical properties and holographic recording of these materials
Films of composites were obtained from solution of arsenic sulphide, Disperse red 1 and polymers in organic
solvents. The solution was spread on glass substrate and dried. The dry film thickness was in the range of 3-10 μm, with
different correlation of arsenic sulphide, Disperse red 1 and polymers.
The absorption spectres of these films was studied and described.
The holographic recording of diffraction gratings was performed by different laser lines (442, 532 nm). During
recording the diffraction efficiency was measured simultaneously in transmission and reflection mode. The profiles of
the gratings and expositing area were analyzed by AFM microscope. Microanalysis of exposed and unexposed films
showed a difference in chemical composition that can be explained by transfer of matter under the action of light.
Amorphous chalcogenide thin films are excellent materials for holographic recordings. AsSeS thin film coating is a
useful optical material for it's thickness to be easily corrected with the use of exposure to light and consecutive chemical
etching. Following properties allow to treat the surface of AsSeS chalcogenide films and to use them in adaptive optics
systems for correction of the optical wavefront. Hereby, we characterize AsSeS film properties to be used for correction
of optical aberrations of the human eye. The thickness of the film is characterized with the method of spectrodensitometry and the surface profile depth with a Hartman- Shack waveform analyzator.