Tracking Novelty Filter at 780 nm Based on a Photorefractive Polymer in a Two-Beam Coupling Geometry
Applied Optics, Vol. 40, Issue 9, pp. 1412-1416 (2001)
http://dx.doi.org/10.1364/AO.40.001412
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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/μm. 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.
© 2001 Optical Society of America
[Optical Society of America ]
OCIS Codes
(090.0090) Holography : Holography
(160.5320) Materials : Photorefractive materials
(160.5470) Materials : Polymers
Citation
Eric Hendrickx, David Van Steenwinckel, and Andre´ Persoons, "Tracking Novelty Filter at 780 nm Based on a Photorefractive Polymer in a Two-Beam Coupling Geometry," Appl. Opt. 40, 1412-1416 (2001)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-40-9-1412
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