In∶Mn∶Fe∶LiNbO_3晶体光全息存储性能  

Growth and holographic storage properties of In,Mn,Fe doped lithium Niobate crystals

作　　者：孙飞[1] 李青华[2] 张守娟[1] 

机构地区：[1]黑龙江大学物理科学与技术学院,哈尔滨150080 [2]青岛大学师范学院,青岛266000

出　　处：《黑龙江大学自然科学学报》2008年第4期506-509,共4页Journal of Natural Science of Heilongjiang University

基　　金：黑龙江省教育厅基金资助项目(10051049);黑龙江省自然科学基金资助项目(E2005120)

摘　　要：采用提拉法(Czochralski method)生长In∶Mn∶Fe∶LiNbO3晶体,并测试紫外可见光谱和抗光损伤能力。利用二波耦合方法测试晶体的响应时间、最大衍射效率、擦除时间,然后计算出光折变灵敏度和动态范围。采用双光子固定方法在Mn∶Fe∶LiNbO3和In(lmol%)∶Mn∶Fe∶LiNbO3晶体中实现非挥发性存储。结果表明随着In3+离子掺入量的增加,In∶Mn∶Fe∶LiNbO3晶体吸收边发生紫移,其抗光损伤能力增强,In(lmol%)∶Mn∶Fe∶LiNbO3晶体的写入时间仅仅是Mn∶Fe∶LiNbO3晶体的5/8.In： Mn： Fe： LiNbO3 crystals was grown by the Czochralski method, and the UV - Vis. absorption spectrum as well as photo scattering resistance ability were measured. Two wave coupling experiments were determined, the writing time maximum diffraction efficiency and erasure time as well as to compute sensitivity and dynamic range. The nonvolatile holographic recording in Mn： Fe： LiNbO3 and In（1 mol% ）： Mn： Fe： LiNbO3 crystal were realized by the two - photon fixed method. The results interpret that the absorption edge of In： Mn： Fe： LiNbO3 crystals shifts to the violet and the photo scattering resistance ability of In： Mn： Fe： LiNbO3 are increased with the increase of In3＋ doping concentration. The recording time of In（ 1 mol% ） ： Mn： Fe： LiNbO3 crystal is only five - eight of that of Mn： Fe： LiNbO3 crystal.

关 键 词：In:Mn:Fe:LiNbO3晶体 全息存储 吸收光谱 

分 类 号：O734[理学—晶体学]