采用提拉法得到了纯LiNbO3和掺杂量为2mol%的Ho:LiNbO3晶体.测试了Ho:LiNbO3晶体的吸收光谱、光致发光光谱,采用620nm激发波长得到了523nm的上转换荧光.利用Judd-Ofelt理论计算出在LiNbO3中的强度参数Ω2=27.4×10-20 cm2、Ω4=7.45×10-20 cm2、Ω6=27.1×10-20 cm2,并由此计算了5G4→5I8、5S2→5I7、5F3→5I8处的自发辐射跃迁几率和积分发射截面.
参考文献
[1] | Woo-Seok Yang;Han-Young Lee;Dae-Ho Yoon .Segregation and laser properties of Er/Mg co-doped LiNbO_3 single crystal[J].Journal of Crystal Growth,2002(1):49-52. |
[2] | A. Wnuk;M. Kaczkan;Z. Frukacz .Infra-red to visible up-conversion in holmium-doped materials[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2002(1/2):353-357. |
[3] | Zengmei Wang;Duorong Yuan;Yansheng Yin;Ge Su .Crystal growth and spectroscopic properties of Ho: La_3Ga_5SiO_(14) single crystals[J].Optical materials,2007(6):663-666. |
[4] | Bhatt R.;Kar S.;Bartwal KS.;Wadhawan VK. .The effect of Cr doping on optical and photoluminescence properties of LiNbO3 crystals[J].Solid State Communications,2003(6):457-462. |
[5] | Deren P;Goldner P;Guillot-Noel O .Green up-conversion emission in LaAlO3 crystal doped with holmium ions[J].Journal of Luminescence: An Interdisciplinary Journal of Research on Excited State Processes in Condensed Matter,2006(0):38-42. |
[6] | 朱玉梅,朱基千,白朝颖,余祥敏,唐高.Ho3+掺杂浓度对氟化镓铟玻璃上转换发光性质的影响[J].材料科学与工程学报,2007(02):245-248. |
[7] | 邹玉林;臧竞存;迟静 等.掺镱离子铌酸锂单晶的生长及光谱特征[J].中国稀土学报,2005,23:5-7. |
[8] | 臧竞存,李晓,单秉锐,刘燕行,刘玉龙.ZnWO4晶体中Ho3+离子光谱参数计算[J].中国激光,2006(04):565-569. |
[9] | Qiao XS;Fan XP;Wang J;Wang MQ .Judd-Ofelt analysis and luminescence behavior of Er3+ ions in glass ceramics containing SrF2 nanocrystals[J].Journal of Applied Physics,2006(7):74302-1-74302-8-0. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分:
-
10%
-
20%
-
30%
-
40%
-
50%