Summary The year 2012 marked the golden anniversary of the Judd-Ofelt (J-O) theory as a tool used widely for the theoretical description of the spectroscopic properties of the lanthanide materials; in fact it is the only tool, as pointed out in the title of this chapter, that is used in...
Judd-ofelt 光谱分析理论 张庆礼 ,何伟 2 ,孙敦陆 ,王爱华 ,殷绍唐 . 中国科学院安徽光学精密机械研究所,安徽 合肥 23003 2. 合肥工业大学应用物理系,安徽 合肥 230009 摘要对Judd- felt 光谱分析理论(J- 理论)的发展和应用进行了综述。J- 理论用于分析固体中的稀土离 子的吸收、发射光谱,可计算它们的跃迁...
易混淆的J和J在各公式中的意义,给出了相应的数值. 关键词:Jud&Ofeh理论;稀土离子;发光;算法 中图分类号:0482.3文献标识码:A Judd-Ofelttheoryanalysisandcalculation LINLiang-shu,XUEYan-ling,JIANGQi—cheng (DepartmentofElectronicScienceandTechnology,EastChinaNormalUniversity,Shanghai200062,China) Abstract:Aclear...
采用改进的J一0理论,可较好地对Pr3光谱进行分析。由TPM 方法,可用非极化光透射光谱来分析各向异性晶体的光谱性质,并且对样品的加工无特殊定向要求。对于重 叠吸收光谱带,拟合J—o参数时可以近似为一个带进行处理。利用荧光寿命也可对J—o参数进行计算。 主题词 Judd—Ofelt光谱理论;光谱参数;稀土离子 中图分类号:...
对Judd-Ofelt光谱分析理论(J-O理论)的发展和应用进行了综述. J-O理论用于分析固体中的稀土离子的吸收,发射光谱, 可计算它们的跃迁几率,谱线强度,能级寿命,发射截面等. 在J-O理论中考虑J混合后, 可使理论和实验结果更好地吻合. 采用改进的J-O理论, 可较好地对Pr3+光谱进行分析. 由TPM方法, 可用非极化光透射...
The absorption and emission spectrum were measured at room temperature and the spectroscopic parameters were calculated based on the Judd-Ofelt (J-O) theory. The results show that Pr:BTBO crystal has a large absorption cross-section of 2.009 × 10−20 cm2 with broad full widths at half ...
上转换材料及激光材料就是掺稀土离子的.三价自由稀土离子的4f~N组态的电子波函数具有相同的宇称,没有电偶极辐射和吸收.当三价稀土离子掺入晶体后,看到了发光,对此早有一些定性的解释.Judd和Ofelt由其中一种解释即静态晶场引起相反宇称的组态混杂出发,推导了跃迁几率表达式,后来被称为J—O理论或J—O模型,用于对...
The Judd–Ofelt (J–O) theory [5], [6] has had a remarkable success in the characterization of radiative transitions in rare-earth doped solids. The purpose of this paper is to review the applications of the J–O theory to the Pr3+ ion and to use this system as an occasion to appra...
doi:10.1021/jp063075jChunxuKeyLiuKeyJunyeKeyLiuKeyKaiKeyDouKeyEBSCO_AspJournal of Physical Chemistry BJudd-Ofelt intensity parameters and spectral properties of Gd2O3:Eu3+ nanocrystals. Liu Chunxu,Liu Junye,Dou Kai. The journal of physical chemistry. B . 2006...
Judd-Ofelt theory: Optical absorption and NIR emission spectral studies of Nd3+:CdO-Bi 2 O 3 -B 2 O 3 glasses for laser applications. Raju, C. Nageswara,Reddy, C. Adinarayana,Sailaja, S.,Seo, Hyo Jin,Reddy, B. Sudhakar. Journal of Materials . 2012...