用高温熔融法制备了Ce3+/Tb3+掺杂的高钆镥氟氧化物闪烁玻璃样品，测试分析了其密度、透射光谱、激发与发射光谱、X射线激发发射光谱及衰减曲线等。制备的闪烁玻璃具有高的闪烁光输出，密度大于5.8 g/cm3，闪烁玻璃中Ce3+离子的引入有利于促进Tb3+离子发光。用Inokuti-Hirayama(I-H)理论模型分析了铈/铽掺杂高钆镥闪烁玻璃的能量传递机理，分析结果表明Ce3+→Tb3+的能量传递形式是无辐射共振能量传递。通过拟合数据和理论公式计算出了两者之间能量传递的速率和效率，其能量传递速率PSA和Tb3+离子浓度的平方成正比关系，而能量传递效率η随Tb3+离子浓度增加而升高。

用高温熔融法制备了不同Tm3+摩尔分数掺杂的摩尔分数比为0.3(SiO2)0.1(Al2O3)0.1(AlF3)0.5(PbF2)x(Tm2O3)(摩尔分数x=0.5%,1.0%,2.0%,3.0%)玻璃。从吸收光谱特性出发,应用Judd-Ofelt理论,计算得到了Tm3+的J-O强度参量(Ω2,Ω4,Ω6)及Tm3+各激发能级的自发辐射跃迁概率、荧光分支比以及辐射寿命等光谱参量。在808 nm波长的激光二极管激发下,研究了不同Tm3+掺杂摩尔分数下玻璃在约1.47 μm与约1.8 μm处的荧光特性,在掺杂摩尔分数约达到2.0%时,在1.8 μm处的荧光强度达最大,然后随着掺杂摩尔分数的增大,其荧光强度反而降低。作者从Tm3+的交叉弛豫与摩尔分数猝灭效应解释了这一荧光强度变化的规律,同时,根据McCumber理论计算了Tm3+跃迁3H6→3F4的吸收截面和跃迁3F4→3H6的受激发射截面。

以K2O为助熔剂,在较大的固液界面温度梯度条件下,应用坩埚下降法技术生长了初始Ni2+掺杂摩尔分数为0.5％的近化学计量比铌酸锂晶体。测定了晶体的吸收光谱,观测到由Ni2+离子在八面体中3A2g(F)→3T1g(P)、3A2g(F)→3T1g(F)、3A2g(F)→3T2g(F)能级的正常自旋允许跃迁所产生的381 nm,733 nm,1280 nm吸收峰和3A2g(F)→1T2g(D)和3A2g(F)→1E(D)能级的自旋禁戒跃迁产生的430 nm与840 nm吸收峰。从晶体紫外吸收边的位置初步估算其摩尔分数比x(Li+)/x(Nb5+)为0.981。根据晶体分裂场理论和吸收光谱,计算了Ni2+在该铌酸锂晶体中的晶格场分裂参量Dq=781 cm-1、Racah参量B=1096 cm-1与C=4353 cm-1。研究了在不同激发波长下晶体在可见光波段的荧光特征,观察到500～630 nm的绿色与800～850 nm的红色荧光发射带,它们归结为1T2g(D)→3A2g(F)与1T2g(D)→3T2g(F)的能级跃迁所致。

测量了Eu³⁺(lmol%)掺杂(60－χ)Bi₂O_3－χ TeO₂－30B₂O₃－10ZnO(χ=5，10，20，30，摩尔百分比)玻璃的吸收光谱、发射光谱、激发光谱以及声子边带谱．根据稀土离子Eu³⁺光学跃起矩阵元的特点，从发射光谱获得了Eu³⁺光学跃起的J－O参数Ω₂与Ω₄．结果显示，强度参量Ω₂随着Bi₂O₃量的增加与TeO₂量的减少而减小，表明材料的对称性提高，Eu－O键强减弱，共价性减弱．随着Bi₂O₃量的增加，电一声子偶合减弱，材料的热稳定性大幅度提高．

The xNb2O5-(15-x)La2O3-40B2O3-45BaO (x=5, 7.5, 12.5 mol%) glasses doped with Eu3+ ions in 1 mol% are fabricated by the melting method. The Fourier transform infrared (FTIR) spectra, phonon side-band spectra, emission and excitation spectra of the glasses are measured. The crystal field parameter and coordination number of Eu3+ ions in the glasses are obtained according to the splitting of their 5D0-7F1 levels. The intensity parameters 'Omega'2 and 'Omega'4 of Eu3+ ions for optical transition are calculated from their emission spectra in terms of reduced matrix U(t) ('lambda'=2, 4, 6) character for optical transitions. The results indicate that the intensity parameters 'Omega'2 and 'Omega'4 increase with the increase of Nb2O5 content, suggesting that the symmetry becomes lower, the band of Eu and O atoms becomes stronger and the covalence increases with the increase of Nb2O5 content.

P_(2)O_(5).BaO.Na_(2)O.K_(2)O glasses doped with various content of Eu_(2)O_(3) were prepared using high temperature melting method, and the Eu^(2+) ions in the phosphate glasses were obtained with the aid of the reductive action of silicon powder. The fabricating conditions, fluorescence, excitation spectra of the glasses were then studied. The glasses containing europium show a broad emission band at 450 nm and sharp bands from 580 to 650 nm, and the co-existence of Eu^(2+) and Eu^(3+) is identified. Also, a good glass with a dominant proportion and large quantity of Eu^(2+) ions can be obtained by the reductive action of silicon powder and proper processing.