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Title: Efficient functionalized photorefractive polymers with infrared sensitivity
Authors: Hendrickx, E ×
Engels, C
Schaerlaekens, Mark
Van Steenwinckel, D
Samyn, Celest
Persoons, Andre #
Issue Date: Jan-2002
Publisher: Amer chemical soc
Series Title: Journal of physical chemistry b vol:106 issue:18 pages:4588-4595
Abstract: We have prepared new photorefractive methacrylate copolymers functionalized with a highly polar bifunctional chromophore. The photorefractive response was studied by ellipsometry, four-wave mixing, and two-beam coupling and is compared to that of polymers and polymer composites studied previously. The polymer could be sensitized with C-60 for operation at the writing wavelength of 780 nm, which results in an improved grating build-up time. At this wavelength, we have observed overmodulation of the internal diffraction efficiency at an applied bias field of 43 V/mum. We have found evidence for the formation of aggregates and phase separation in the copolymers.
ISSN: 1520-6106
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Chemistry - miscellaneous
Molecular Design and Synthesis
Molecular Imaging and Photonics
× corresponding author
# (joint) last author

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