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首页> 外文会议>International Conference on Photorefractive Effects, Materials, and Devices >Study of UV Recording in Congruent Ce:Mn:LiNbO_3 Crystals
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Study of UV Recording in Congruent Ce:Mn:LiNbO_3 Crystals

机译：CE：Mn：LINBO_3晶体中UV录制的研究

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摘要

An effective technique with recording UV beams (364nm) and red light (633nm) readout is proposed to realize nonvolatile holographic storage in Ce:Mn:LiNbO_3 crystals, the recording results show that both of the recording sensitivity and the fixed diffraction efficiency can be improved more 50 times than that in two-center recording scheme with recording red beams (633nm) and UV sensitization. The theoretical analysis shows that some factors result in these improvements in this UV recording scheme, the first is that much electrons are excited simultaneity in the deep center and the average movement cycle becomes shorter; the second is that bulk photovoltaic coefficient of shallow center for recording wavelength is increased with recording wavelength being shorter, the last is that electrons grating in the deep and shallow center being in phase makes the fixed space-charge field stronger. This technique can be used to realize the high-density data storage.
机译：提出了一种具有记录UV梁（364nm）和红色光（633nm）读出的有效技术，以实现CE：Mn：Linbo_3晶体中的非易失性全息存储，记录结果表明，可以提高记录灵敏度和固定衍射效率。 比双中心记录方案中的50倍，记录红色梁（633nm）和紫外线敏化。 理论分析表明，一些因素导致这些UV记录方案中的这些改进，首先是在深中心中同时发生很多电子，平均运动周期变短; 其次是，对于记录波长的宽舱光伏系数随着记录波长而越短而增加，最后的是在深度和浅中心处于相位的电子光栅使得固定的空间电荷场更强。 该技术可用于实现高密度数据存储。

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