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Proceedings Paper

New infrared-sensitive photorefractive polymers and polymer composites
Author(s): Mark Schaerlaekens; Christiaan Engels; Ahmed Hameurlaine; Wim Dehaen; Celest Samyn; André Persoons
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Paper Abstract

We report on the synthesis, the molecular properties and an evaluation of the photorefractive performance of different types of polymer composites. Samples were C60 and (2, 4, 7-trinitro-9-fluorenylidene)malonitrile (TNFDM) sensitized and characterized by four-wave mixing and two-beam coupling experiments at 680 and 780 nm. In a first type of composite, new synthesized N-arylated carbazoles were used as bifunctional chromophores to demonstrate the importance of the relative orientation of dipole moment and polarizability tensor on the Figure-of-Merit (FOM) of photorefractive experiments. Investigations were performed on mixed inorganic/organic nanocomposites to extend the photosensitivity of the samples to longer wavelengths, photoconductivity at 980 nm was studied on PbS colloids/PVK samples. Finally, a fully functionalized photorefractive polymer was synthesized and analyzed by four-wave mixing and two beam coupling experiments. The polymer showed a strange oscillating behavior in diffraction efficiency and gain. Thus far the temporally oscillation couldn’t be explained properly.

Paper Details

Date Published: 8 December 2003
PDF: 12 pages
Proc. SPIE 5216, Organic Holographic Materials and Applications, (8 December 2003); doi: 10.1117/12.505474
Show Author Affiliations
Mark Schaerlaekens, Katholieke Univ. Leuven (Belgium)
Christiaan Engels, Katholieke Univ. Leuven (Belgium)
Ahmed Hameurlaine, Katholieke Univ. Leuven (Belgium)
Wim Dehaen, Katholieke Univ. Leuven (Belgium)
Celest Samyn, Katholieke Univ. Leuven (Belgium)
André Persoons, Katholieke Univ. Leuven (Belgium)

Published in SPIE Proceedings Vol. 5216:
Organic Holographic Materials and Applications
Klaus Meerholz, Editor(s)

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