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Proceedings Paper

Photorefractivity in polymeric composite materials
Author(s): Maciek E. Orczyk; Jaroslaw W. Zieba; Paras N. Prasad
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Paper Abstract

The results of photorefractivity studies in newly developed polymer composite C60/PVK/DEANST are presented. The composite contains fullerene (C60) photosensitizing molecules, second-order active molecules of diethylaminonitrostyrene (DEANST) and charge transporting polymeric matrix of poly[N-vinylcarbazole] (PVK). Photorefractive properties of the material were investigated using erasable volume holography and two-beam coupling techniques. Additional information was obtained from the results of photoconductivity, electro-optic modulation and the angular dependence of holographic diffraction. The kinetics of the effect, as well as the writing beams and the external dc field switching of the refractive grating are discussed. A previously developed theory of space-charge field gratings formation in photoconductive polymers is used to calculate four-wave mixing diffraction efficiency.

Paper Details

Date Published: 16 December 1993
PDF: 12 pages
Proc. SPIE 2025, Nonlinear Optical Properties of Organic Materials VI, (16 December 1993); doi: 10.1117/12.165267
Show Author Affiliations
Maciek E. Orczyk, SUNY/Buffalo (United States)
Jaroslaw W. Zieba, SUNY/Buffalo (United States)
Paras N. Prasad, SUNY/Buffalo (United States)

Published in SPIE Proceedings Vol. 2025:
Nonlinear Optical Properties of Organic Materials VI
Gustaaf R. Moehlmann, Editor(s)

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