Published September 1, 2005
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Journal Article
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Femtosecond holography in lithium niobate crystals
Chicago
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Abstract
Spatial gratings are recorded holographically by two femtosecond pump pulses at 388 nm in lithium niobate (LiNbO3) crystals and read out by a Bragg-matched, temporally delayed probe pulse at 776 nm. We claim, to our knowledge, the first holographic pump-probe experiments with subpicosecond temporal resolution for LiNbO3. An instantaneous grating that is due mostly to the Kerr effect as well as a long-lasting grating that results mainly from the absorption caused by photoexcited carriers was observed. The Kerr coefficient of LiNbO3 for our experimental conditions, i.e., pumped and probed at different wavelengths, was approximately 1.0×10^-5 cm²/GW.
Additional Information
© 2005 Optical Society of America. Received March 24, 2005; accepted April 23, 2005. We thankfully acknowledge financial support from the National Science Foundation (NSF) Engineering Research Centers Program for Neuromorphic Systems Engineering under award EEC-9402726, from NSF–Germany Cooperative Research grant INT-0233988), from Deutsche Telekom AG, and from the Deutsche Forschungsgemeinschaft (award BU 913/13-1).Files
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- Eprint ID
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- CaltechAUTHORS:HSIol05
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