|
广西师范大学学报(自然科学版) ›› 2011, Vol. 29 ›› Issue (2): 71-75.
熊飞兵1,2, 杨峰3
XIONG Fei-bing1,2, YANG Feng3
摘要: 测量Pr3+:PbWO4晶体3P0和1D2能级在常温下的荧光衰减曲线,计算这2个能级的荧光寿命。结合改进的Judd-Ofelt理论得到3P0和1D2能级的辐射寿命,详细分析了这2个能级的荧光衰减动态情况。对于3P0能级,其荧光衰减主要是受到多声子无辐射跃迁的影响;对于1D2能级,其无辐射衰减的主要通道是共振交叉能量传递。采用Inokuti-Hirayama模型,详细分析1D2能级的荧光衰减过程,证实其荧光猝灭机制是电偶极-电偶极交叉能量传递。
中图分类号:
[1] FIBRICH M,JELINKOVA H,SULC J,et al.Pr:YalO3 microchip laser[J].Opt Lett,2010,35:2556-2557. [2] NICOLAS S,DESCROIX E,JOUBERT M F,et al.Potentiality of Pr3+-and Ce3+ Pr3+-codoped crystals for tunable UV upconversion lasers[J].Opt Mater,2003,22:139-142. [3] OKAMOTO H,KASUGA K,HARA L,et al.Visible-NIR tunable Pr3+-doped fiber laser pumped by GaN laser didode[J].Opt Exp,2009,17:20227-20232. [4] TER-GABRIELYAN N,AANAMYAN T,DUBINSKII M.Resonantly pumped Pr3+-doped eye-safe laser at similar to 1.65 μm[J].Opt Lett,2009,34:1949-1951. [5] XIONG Fei-bing,LIN Yan-fu,CHEN Yu-jin,et al.Visible quantum cutting in Pr3+:PWO4 crystal through energy transfer between the host and Pr3+ ions[J].Chem Phys Lett,2006,429:410-414. [6] HUANG Yuan-ling,TSUBOI T,SEO H J.Spectroscopic properties of Pr3+ ions in a PWO4 signal crystal[J].J Phys Chem A,2008,112:5839-5845. [7] CHEN Wei,INAGAWA Y,OMATSU T,et al.Diode-pumped,self-stimulating,passively Q-switched Nd3+:PbWO4 Raman laser[J].Opt Comm,2001,194:401-407. [8] XIONG Fei-bing,LUO Zun-du,HUANG Yi-dong.Spectroscopic properties of Pr3+ ions in anisotropic PWO4 crystal[J].Appl Phys B:Laser Opt,2005,80:321-328. [9] WEBER M J.Luminescence decays by energy migration and transfer:observation of diffusion-limited relaxation[J].Phys Rev B,1971,4:2932-2937. [10] BLUMBERG W E.Nuclear spin-lattice relaxation caused by paramagnetic impurities[J].Phys Rev,1960,119:79-84. [11] HUANG Yuan-ling,FENG Xi-qi,XU Zhu,et al.Growth and spectra properties of Nd3+ in anisotropic PbWO4 crystal[J].Solid State Commun,2003,127:1-5. [12] JUDD B R.Optical absorption intensities of rare-earth ions[J].Phys Rev,1962,127:750-756. [13] OFELT G S.Intensities crystal spectra of rare-earth ions[J].J Chem Phys,1962,37:511-516. [14] DUNINA E B,KAMINSKII A A,KORNIENKO A A,et al.The dependence of the line strength of electric dipole f-f transition on the manifold energy of thePr3+ ion in YAlO3[J].Sov Phys Solid State,1990,32:290-295. [15] MACALIK L,HANUZA J,KAMINSKII A A.Polarized Raman spectra of the oriented NaY(WO4)2 and KY(WO4)2 single crystals[J].J Mol Struct,2000,555:289-297. [16] INOKUTI M,HIRAYAMA F.Intensity of energy transfer by exchanger mechanism on donor luminescence[J].J Chem Phys,1965,43:1978-1981. [17] HAN Bao-guo,FENG Xi-qi,HU Guo-qiang,et al.Observation of dipole complexes in PbWO4:La3+ single crystal[J].J Appl Phys,1998,84:2831-2835. |
No related articles found! |
|
版权所有 © 广西师范大学学报(自然科学版)编辑部 地址:广西桂林市三里店育才路15号 邮编:541004 电话:0773-5857325 E-mail: gxsdzkb@mailbox.gxnu.edu.cn 本系统由北京玛格泰克科技发展有限公司设计开发 |