S.Bugaychuk, E.Korchemskaya, N.Burykin
The holographic kinetics of organic polymer thin films with low-saturated absorption are considered both for self-diffraction and diffraction of a weak probe beam in Raman-Nath conditions. The coupling effect between different diffracted orders is taking into account. The coupling effect results in considerable increase of the diffraction efficiency of self-diffracted beams compared with the diffraction of the probe beam were shown. For the region of deep saturation the maximum diffraction efficiency is higher than in the region far from the saturation. The maximum of diffraction efficiency is reached for considerable shorter time in grating recording kinetics in the region of deep saturation. This opens the perspective of using those materials for novelty filter. The experimental results on low-saturated dry bacteriorhodopsin films well agree the theoretical predictions.
doi 10.3116/16091833/3/1/27/2002
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