Zn：Fe：LiNbO3晶体的生长及位相共轭效应的研究

在ＬｉＮｂＯ３中掺进ＺｎＯ和Ｆｅ２Ｏ３生长出Ｚｎ：Ｆｅ：ＬｉＮｂＯ３晶体。测试了晶体抗光致散射能力、位相共轭反射率和响应时间。研究了Ｚｎ：Ｆｅ：ＬｉＮｂＯ３位相共轭效应增强的机理。     

树脂含量对稀土摩阻材料摩擦磨损性能的影响

在制备的新型稀土摩阻材料中，研究了丁腈改性酚醛树脂粘结剂含量变化对材料性能的影响。结果表明：在本文实验条件下，树脂粘结剂的含量对稀土摩阻材料的摩擦磨损性能有较大影响，当树脂粘结剂含量为20％时。材料的摩擦磨损性能最佳，并且分析了树脂粘结剂含量对材料性能影响的相关因素。     

Zn∶Fe∶LiNbO_3晶体的生长及位相共轭效应的研究

在ＬｉＮｂＯ３中掺进ＺｎＯ和Ｆｅ２Ｏ３生长出Ｚｎ∶Ｆｅ∶ＬｉＮｂＯ３晶体。测试了晶体抗光致散射能力、位相共轭反射率和响应时间。研究了Ｚｎ∶Ｆｅ∶ＬｉＮｂＯ３位相共轭效应增强的机理。     

Enhancement of 1.54 μm emission in Er：LiNbO_3 crystal by codoping with Zn~（2＋） ions

The enhanced intensity and lengthened lifetime of 1.54 μm emission were observed for Er:LiNbO3 crystal codoped with Zn2+ ions.The ZnO codoping led to the reduction of the green upconversion emission in Er:LiNbO3 crystals.The decay trace of the 4S3/2→4I15/2 was ob-viously nonexponential for Er:LiNbO3 codoped with 0 and 3 mol.% ZnO,but became exponential for one codoped with 6 mol.% ZnO.The OH-absorption spectra showed after codoping with Zn2+ ions,the OH-absorption peaking position shifted from ~3495 to 3484 cm-1,and the absorption cross section decreased.These spectroscopic characteristics suggested that the improvement of 1.54 μm emission was attributed to the reduction of Er3+ cluster sites.     

KLN晶体的生长及其结构性能的研究

以顶部籽晶（ＴＳＳＧ）法生长出透明的滑有开裂的ＫＬＮ晶体,采用场冷法对晶体进行极化,测试ＫＬＮ晶体Ｘ－射线衍射图,并计算晶格常数,测试ＫＬＮ晶体的红外透射光谱,研究影响ＫＬＮ晶体产生开裂和失透的原因和克服措施,经过倍频得到波长为４４１ｎｍ的蓝光。     

Up-conversion luminescence of Er~(3+)-doped and Yb~(3+)/Er~(3+) co-doped 12CaO·7Al_2O_3 poly-crystals

The optical properties of Er3+-doped and Yb3+/Er3+ co-doped 12CaO·7Al2O3 (C12A7) poly-crystals, synthesized by high temperature solid state method, were investigated in detail. For Er3+-doped and Yb3+/Er3+ co-doped C12A7 poly-crystals, two main emission bands centered around 530/550 nm (green) and 660 nm (red) were observed under 980 nm diode laser excitation via an up-conversion process. The intensity of green up-conversion emission had a strong increase in Er3+ (1.0 mol.%, 1.5 mol.%, 3.0 mol.%), and the i...     

Zn:Fe:LiNbO3晶体全息存储性能

在ＬｉＮｂＯ３中掺进ＺｎＯ和Ｆｅ２Ｏ３生长了Ｚｎ：Ｆｅ：ＬｉＮｂＯ３晶体。     

Up-conversion luminescence of Er~（3＋）-doped and Yb~（3＋）/Er~（3＋） co-doped 12CaO·7Al_2O_3 poly-crystals

The optical properties of Er3+-doped and Yb3+/Er3+ co-doped 12CaO·7Al2O3 (C12A7) poly-crystals, synthesized by high temperature solid state method, were investigated in detail. For Er3+-doped and Yb3+/Er3+ co-doped C12A7 poly-crystals, two main emission bands centered around 530/550 nm (green) and 660 nm (red) were observed under 980 nm diode laser excitation via an up-conversion process. The intensity of green up-conversion emission had a strong increase in Er3+ (1.0 mol.%, 1.5 mol.%, 3.0 mol.%), and the intensity ratio of red to green up-conversion emission had an increase in Yb3+ (1.0 mol.%, 2.0 mol.%, 10. 0 mol.%)/Er3+ (fixed at 1.0 mol.%). This detailed study of the up-conversion processes allowed us to identify the dominant up-conversion mechanisms in Er3+-doped and Yb3+/Er3+ co-doped C12A7 poly-crystals.     

全息法研究Mg:In:LN晶体波导基片的光损伤

在ＬＮ中掺进ｘ（ＭｇＯ）＝３％和ｘ（Ｉｎ２Ｏ３）＝１％、２％,用Ｃｚｏｃｈｒａｌｓｋｉ法生长Ｍｇ：１％Ｉｎ：ＬＮ和Ｍｇ：２％ＩＮ：：ＬＮ晶体。以光斑畸变法测试晶体光损伤阈值,通过质子交换技术（ＰＥ）制备ＬＮ和Ｍｇ：Ｉｎ：ＬＮ晶体光波导基片,用全息法研究晶体波导基片的光损伤。结果表明,ＰＣ：Ｍｇ：１％Ｉｎ：ＬＮ的光损伤阈值比ＰＥ：ＬＮ提高２个数量级以上,ＰＥ：Ｍｇ：２％Ｉｎ：ＬＮ的光损伤阈值比ＰＥ：     

碳钢填料气相稀土扩渗及其性能研究

采用化学气相扩渗法对化工用碳钢填料进行稀土多元扩渗,研究了填料的化学性能,力学性能和传质性能.结果表明,经扩渗处理后碳钢填料的耐腐蚀性能明显增强,硬度提高,同时,填料塔的等板高度有所下降,使传质性能得到改善.并初步分析了稀土发生作用的可能机理.