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Photorefractive effects in long narrow BSO-crystals with a

机译:长而窄的BSO晶体的光折变效应

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Abstract: In a photorefractive Bi$-12$/SiO$-20$/ crystal with high applied electric AC field of square-wave shape a fast two- wave coupling response (less than 1 second) and a slow hologram readout decay (minutes) was found for a wavelength of 633 nm. This can be explained by electron-hole transport with two trap-levels. An intensity dependence of the slower complementary grating was found. Illuminating with the readout wave without applied electric field leads to a very slow grating decay (many hours).!1
机译:摘要:在具有高施加方波AC电场的光折合Bi $ -12 $ / SiO $ -20 $ /晶体中,快速的两波耦合响应(小于1秒)和较慢的全息图读数衰减(分钟)发现)的波长为633nm。这可以通过具有两个陷阱能级的电子-空穴传输来解释。发现较慢的互补光栅的强度依赖性。在没有施加电场的情况下用读出波照亮会导致非常缓慢的光栅衰减(许多小时)。!1

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