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Proceedings Paper

Infrared-sensitive photorefractive polymer composites and fully functionalized polymethacrylates with high gain and dynamic range
Author(s): Eric Hendrickx; David Van Steenwinckel; Christiaan Engels; Mark Schaerlaekens; Elke Gubbelmans; Celest Samyn; Andre P. Persoons
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Paper Abstract

We have studied the photorefractive properties of three different polymer types. A first class were (2,4,7-trinitro- 9-fluorenylidene)malononitrile sensitized poly(N- vinylcarbazole)/N-ethylcarbazole polymer composites doped with dyes of varying polarity. The performance was optimized, and at an applied field of 59 Volt/micrometer, we have observed complete internal diffraction and a gain coefficient of 167 cm-1. A photorefractive two-beam coupling novelty filter was constructed with such a polymer. The response of these composites was compared to that of polymethacrylates functionalized with carbazole, an internal plasticizer and different chromophores. The best results were obtained in a third polymer type, where only a bifunctional chromophore was attached to the polymer backbone.

Paper Details

Date Published: 16 January 2002
PDF: 10 pages
Proc. SPIE 4462, Nonlinear Optical Transmission Processes and Organic Photorefractive Materials, (16 January 2002); doi: 10.1117/12.452734
Show Author Affiliations
Eric Hendrickx, Katholieke Univ. of Leuven (Belgium)
David Van Steenwinckel, Katholieke Univ. of Leuven (Belgium)
Christiaan Engels, Katholieke Univ. of Leuven (Belgium)
Mark Schaerlaekens, Katholieke Univ. of Leuven (Belgium)
Elke Gubbelmans, Katholieke Univ. of Leuven (Belgium)
Celest Samyn, Katholieke Univ. of Leuven (Belgium)
Andre P. Persoons, Katholieke Univ. of Leuven (Belgium)


Published in SPIE Proceedings Vol. 4462:
Nonlinear Optical Transmission Processes and Organic Photorefractive Materials
Christopher M. Lawson; Klaus Meerholz, Editor(s)

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