摘要
在铌酸锂LiNbO3(LN)中掺入摩尔分数为0.1%MnO,质量分数为0.03%Fe2O3和摩尔分数分别为1%,3%和7%ZnO,用提拉法生长Zn:Mn:Fe:LN晶体。测试了晶体的红外光谱,发现7%Zn:Mn:Fe:LN晶体OH-吸收峰位置移到3529cm-1。用光斑畸变法测量晶体的抗光损伤能力。结果表明:7%Zn:Mn:Fe:LN晶体的抗光损伤能力比Mn:Fe:LN晶体提高1个数量级以上。探讨了Zn:Mn:Fe:LN晶体OH-吸收峰移动和抗光致散射能力增强的机理。以He-Ne激光作记录光,高压汞灯紫外光作开关光,用双光子固定法测量了Zn:Mn:Fe:LN晶体的二波耦合衍射效率,以Mn:Fe:LN和1%Zn:Mn:Fe:LN晶体作为存储介质实现了非挥发性存储。
Zn：Mn：Fe：LiNbO3 （Zn：Mn：Fe：LN） crystals doped with 0.1% MnO （in mole） and 0.03% Fe2O3 （in mass） and with 1% （in mole, the same below）, 3% and 7% ZnO were grown by the Czochralski method. The infrared spectra of crystals were determined. The results show that the OH- absorption peak of 7% Zn：Mn：Fe：LN crystal is shifted to 3 529 cm^-1. The photo-damage resistance ability of Zn：Mn：Fe：LN crystals were measured by the facular distortion observation method. The photo-damage resistance ability of 7% Zn：Mn：Fe：LN crystal is increased about 1 order of magnitude compared to that of Mn：Fe：LN. The mechanisms of the OH- absorption peak shift and enhancement of the photo-damage resistance ability of Zn：Mn：Fe：LN crystal were investigated. Using He-Ne laser beams as the recording light and an ultraviolet beam for a high voltage mercury lamp as the gating light, the two-wave coupling diffraction efficiency of Zn：Mn：Fe：LN was measured by the two-photon fixed method. Using Mn：Fe：LN and 1% Zn：Mn：Fe：LN crystals as the storage materials, non-volatile holographic storage was achieved.
出处
《硅酸盐学报》
EI
CAS
CSCD
北大核心
2008年第11期1601-1605,共5页
Journal of The Chinese Ceramic Society
关键词
掺锌、锰和铁铌酸锂晶体
抗光损伤
非挥发性全息存储
提拉法
zinc, manganese and iron doped lithium niobate crystal
photo-damage resistance
non-volatile holographic storage
Czochralski method
