Hexagon formation in photorefractive crystals as mirrorless coherent oscillation
作者： Y. Uesu , A. Ueno , M. Kobayashi , S. Odoulov
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摘要: The spontaneous appearance of hexagon patterns in photorefractive crystals is treated as mirrorless coherent four-wave mixing oscillation. It shown experimentally that the system has a well-defined coupling-strength threshold and behaves other optical oscillators near threshold. A simple relation for angle sideband function distance between end mirror sample derived verified experimentally.
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