在室温下测量了掺钕钨酸钾钆(Nd3+:KGW)晶体三个晶轴方向的吸收光谱,其吸收谱带强度明显显示各向异性.将Judd-Ofelt(J-O)理论进行修正,使其扩展应用于处理各晶轴方向的吸收光谱,计算出三个晶轴方向的各光谱带吸收系数、电偶极跃迁振子强度,其结果说明了Nd3+:KGW吸收光谱存在着各向异性.同时还研究了该材料在812nm激发下的上转换荧光特性,观察到较强的蓝色荧光.
参考文献
| [1] | Pujol M C;Rico M;Zaldo C et al.Crystalline Structure and Optical Spectroscopy of Er3+-doped KGd(WO4)2 Single Crystal[J].Journal of Applied Physiology,1999,B68:187-197. |
| [2] | Luo Z D;Huang Y D.Spectrum Physics of Solid Laser Materials[M].Fujian:Science and Technology Pubishhing Company of Fujian Province:164. |
| [3] | Kushawaha V;Banerjee A .Major L.High-efficiency Fashlamppumped Nd:KGW laser[J].Applied Physics B Electromagnetism,Optics and Lasers Journals,1993,56(04):239-242. |
| [4] | Stankov K A;Marowsky G .High Efficiency Multicolour Q-switched Nd:KGW Laser[J].Applied Physics B Electromagnetism,Optics and Lasers Journals,1995,61(02):213-215. |
| [5] | Esmeria J M;Ishii H;Sato M et al.Efficiency Continuous-wave Lasing Operation of Nd3+:KGW at 1067nm with Diode and Ti:Sappire Laser Pumping[J].Optics Letters,1995,20(14):1538-1540. |
| [6] | Zhang T J;Tu C Y;Luo Z D .Experimental Sudy of Nd3+:KGd(WO4)2 Laser Pmped by Laser Dode[J].Chinese Physics Letters,1996,13(03):178-181. |
| [7] | Zhang X H;Jiang B X;Xu J C et al.Anisotropic Asorption Spctra in YALO3:(Nd3+ and Lu3+) Single Crystal[J].Spectroscopy and Spectral Analysis,1998,18(02):144-1148. |
| [8] | Judd B R .Optical Absorption Intensities of Rare-earth Ions[J].Physical Review,1962,127:750-761. |
| [9] | Ofelt G S .Intensities of Crystal Spectra of Rare-earth Ions[J].Journal of Chemical Physics,1962,37:511-519. |
| [10] | Zheng Zhiqiang;Liang Hao;Ming Hai;Zhang Qi-Jin;Han Xin-Hai;Wang Guan-Zhong;Xie Jian-Ping .Optical Transition Probability of Sm~(3+) Ions in a Polymer Optical Fibre[J].Chinese physics letters,2004(2):291-294. |
| [11] | Zheng Z Q;Liang H;Ming H .Optical Transition Probability of the Er3+ Ions in Er (DBM)3 Phen-doped poly (methyl methacylate)[J].Optics Communications,2004,233:149-153. |
| [12] | Chrnall W T;Fields P R;Rajna K .Electronic Energy Levels in the Trivalent Lanthanide Aquo ions[J].Journal of Chemical Physics,1968,49:4424-4442. |
| [13] | Luo Z D;Chen X Y;Zhao T J .Judd-Ofelt Parameter Analysis of Rare Earth Anisotropic Crystals by Three Perpendiculair Unpolarized Absorption Measurements[J].Optics Communications,1997,134:415-422. |
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%