Semiconductor Physics, Quantum Electronics & Optoelectronics, 23 (3), P. 323-328 (2020).

Polarization holography in azobenzene polymeric films prepared using the new chemical method
N.A. Davidenko1, I.I. Davidenko1, V.V. Kravchenko2, V.A. Pavlov1, V.V. Tarasenko1, N.G. Chuprina1

1Taras Shevchenko Kyiv National University, 01601 Kyiv, Ukraine
2Institute of Physical Organic Chemistry and Coal Chemistry, 02160 Kyiv, Ukraine E-mail:

Abstract. The recording media for polarization holography based on azobenzene polymers are obtained by polymer-analogous transformations of polymethacrylic acid and its copolymers with alkyl methacrylates. Their informational properties were investigated when recording holograms of a plane wavefront. It has been found that the recording and relaxation times of holograms are approximately the same. They are defined mainly by the processes of trans-cis-isomerization of azobenzene groups without formation of surface relief of the polymeric film. The efficiency of the trans-cis-isomerization process decreases, if a heavy substituent is present in the azobenzene chromophore. These results are of practical interest in the choice of photosensitive materials for holographic recording media with optimal information characteristics.

Keywords:polarization holography, photophysical properties, isomerization, recording material, azobenzene.

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