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Title: Tracking novelty filter at 780 nm based on a photorefractive polymer in a two-beam coupling geometry
Authors: Hendrickx, Eric ×
Van Steenwinckel, David
Persoons, Andre #
Issue Date: Jan-2001
Publisher: Optical soc amer
Series Title: Applied Optics vol:40 issue:9 pages:1412-1416
Abstract: We have constructed an all-optical tracking novelty filter based on the dynamic holographic properties of an efficient and fast infrared-sensitive photorefractive polymer. The photorefractive polymer was used in a two-beam coupling geometry. The polymer had a gain coefficient of 175 cm(-1) at a wavelength of 780 nm and an applied field of 72 V/mum. In contrast to what has been observed in photorefractive crystals, the gain coefficient and the filter contrast are largely independent of the writing beam's intensity ratio. We show images of a swinging pendulum observed through the novelty filter. (C) 2001 Optical Society of America.
ISSN: 1559-128X
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Molecular Imaging and Photonics
× corresponding author
# (joint) last author

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