Paper
16 January 2002 Infrared-sensitive photorefractive polymer composites and fully functionalized polymethacrylates with high gain and dynamic range
Eric Hendrickx, David Van Steenwinckel, Christiaan Engels, Mark Schaerlaekens, Elke Gubbelmans, Celest Samyn, Andre P. Persoons
Author Affiliations +
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.
© (2002) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Eric Hendrickx, David Van Steenwinckel, Christiaan Engels, Mark Schaerlaekens, Elke Gubbelmans, Celest Samyn, and Andre P. Persoons "Infrared-sensitive photorefractive polymer composites and fully functionalized polymethacrylates with high gain and dynamic range", Proc. SPIE 4462, Nonlinear Optical Transmission Processes and Organic Photorefractive Materials, (16 January 2002); https://doi.org/10.1117/12.452734
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Polymers

Chromophores

Diffraction

Composites

Crystals

Modulation

Image filtering

Back to Top