Holographic grating recording in azobenzene functionalized polymers |
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Authors: | Anna Sobolewska Andrzej Miniewicz Eugenia Grabiec Danuta Sek |
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Institution: | (1) Institute of Physical and Theoretical Chemistry, Wroclaw University of Technology, 50-370 Wroclaw, Poland;(2) Centre of Polymer Chemistry, Polish Academy of Sciences, 41-819 Zabrze, Poland |
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Abstract: | A group of 22 polymers have been synthesized to test their suitability for recording holographic gratings. Polyamides, polyimides,
polyesters and their combinations were functionalized with pendant azobenzene groups containing single or double N=N. The
polymers were studied using a standard degenerate two-wave mixing technique, which enables measurement of light-induced periodic
modification of polymer refractive index and absorption coefficient by analysis of the diffracted light. Two qualitatively
different configurations of the holographic polarization recording were used, s-s and s-p. The relationship between structural properties of polymer matrix and azobenzene groups and the holographic grating recording
kinetics and light diffraction efficiency was investigated. |
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Keywords: | Azobenzene functionalized polymers azo-polymers refractive index light scattering holographic grating recording polarization recording |
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