制备了χNb2O5-(10-χ)La2O3-60P2O5-10Na2O-19BaO-Eu2O3(以mol%记χ=9、7、5)的玻璃,测定了玻璃的吸收光谱、发射光谱、激发光谱、声子边带谱和差热分析曲线.从发射光谱出发获得了Eu3+光学跃迁的J-O参数Ω2、Ω4,并计算了Eu3+离子5DO→7FJ(J=1,2,4)的自发辐射跃迁几率A以及受激发射截面σp.结果显示,随着La2O3的增加和Nb2O5的减少,玻璃样品的热稳定性降低,强度参数Ω2减小,表明材料的对称性提高,共价性减弱,Eu-O键强减弱;随着La2O3的增加,电-声子偶合减弱,受激发射截面σp减小.
参考文献
| [1] | 干福熹;邓佩珍.激光材料[M].上海:上海科学技术出版社,1996:322. |
| [2] | 干福熹.玻璃的光学与光谱性质[M].上海:上海科学技术出版社,1992:130. |
| [3] | Nogami, M;Abe, Y .High-temperature persistent spectral hole burning of Eu3+-doped SiO2 glass prepared by the sol-gel process[J].Applied Physics Letters,1997(24):3465-3467. |
| [4] | Nogami M.;Abe Y. .Persistent spectral hole burning in Eu3+-doped aluminosilicate glass at high temperature[J].Journal of the Optical Society of America. B, Optical Physics,1998(2):680-683. |
| [5] | Isabella-Ioana Oprea;Hartmut Hesse;Klaus Betzler .Optical properties of bismuth borate glasses[J].Optical materials,2004(3):235-237. |
| [6] | 王绩伟,宋宏伟,夏海平,孔祥贵,许武,张家骅.Eu3+掺杂铌酸盐玻璃的光谱性质[J].发光学报,2003(01):81-86. |
| [7] | 马天飞.氧化铌在玻璃结构中的特性及其应用[J].光学精密工程,1994(03):10. |
| [8] | Marta Zambelli;Adolfo Speghini;Gianluigi Ingletto;Clinio Locatelli;Marco Bettinelli;Fiorenzo Vetrone;J. Christopher Boyer;John A. Capobianco .Optical spectroscopy of lanthanide ions in Al_2O_3-Nb_2O_5-TeO_2 glasses[J].Optical materials,2004(2):215-222. |
| [9] | Weber M;Lynch J;Blackburn D et al.Dependence of the stimulated emission cross section of Yb3+ on host glass composition[J].IEEE Journal of Oceanic Engineering,1983,19(10):1600. |
| [10] | Judd B R .Optical absorption intensities of rare-earth ions[J].Physical Review,1961,127(03):750. |
| [11] | Ofelt G S .Intensities of crystal spectra of rare-earth ions[J].Journal of Chemical Physics,1962,37(03):511. |
| [12] | Jia Guohua;Tu Chaoyang;Li Jianfu et al.Spectroscopic properties of Nd3+ doped LaB3O6 crystal[J].Optics Communications,2004,242:79. |
| [13] | 黄世华 .ZnS:Sm3+的Ω参数[J].发光与显示,1983,4(04):24. |
| [14] | 陈宝玖,鄂书林,黄世华.Eu3+掺杂的XFn-H3BO3玻璃材料的声子边带分析[J].中国稀土学报,2000(04):301-304. |
| [15] | Plotnichenko VG.;Kryukova EB.;Dianov EM.;Sokolov VO. .Hydroxyl groups in phosphosilicate glasses for fibre optics[J].Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites,2000(1/3):20-27. |
| [16] | 陈宝玖,王海宇,鄂书林,黄世华.从Eu3+发射光谱获得J-O参数Ω2、Ω4[J].发光学报,2001(02):139-142. |
| [17] | Rambabu U;Khanna P K;Rao I C et al.Fluorescence spectra of Eu3+-doped lanthanide oxybromide-based powder phosphors[J].Materials Letters,1998,34:269. |
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