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  • Controlling Light with Light: Photorefractive Effects, Photosensitivity, Fiber Gratings, Photonic Materials and More
  • OSA Technical Digest (CD) (Optica Publishing Group, 2007),
  • paper TuA4
  • •https://doi.org/10.1364/PR.2007.TuA4

Effect of Incoherent Lighting on Contradirectional Interaction in BTO

S.M. Shandarov, A.A. Kolegov, N.I. Burimov, V.S. Belikov, V.V. Prokofiev, T. Jääskeläinen, A.I. Tolstik, and P.I. Ropot

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Abstract

The change in sign of gain coefficient at interaction of laser beams with the wavelength of 633 nm on a reflection photorefractive grating in BTO crystal in response to its lighting by green radiation from light-emitting diode was experimentally observed. To explain this phenomenon we use improved three-level model considering donor centers of two types and trap center of another type.

© 2007 Optical Society of America

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