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Instability of moving gratings in photorefractive crystals |
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| Authors: | B I Sturman M Mann K H Ringhofer |
| Institution: | (1) Institute for Automation and Electrometry, Academy of Science, Siberian Branch, Universitetskij Prospekt 1, 630090 Novosibirsk, Russia;(2) Fachbereich Physik der Universität Osnabrück, P.O. Box 4469, W-4500 Osnabrück, Fed. Rep. Germany |
| Abstract: | It is shown that a moving intensity grating in a photorefractive crystal with a sufficiently large lifetimemobility product can give rise to an instability against excitation of weakly damped space-charge waves. Increments and threshold of the instability are investigated for the threedimensional case. Subharmonics and other nonlinear scenarios of saturation are discussed. |
| Keywords: | 42 40 42 65 |
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