| Influence of In3＋ ions concentration on spectroscopic properties of Ho：LiNbO3 crystals |
| |
| 作者姓名： | 代丽 李大勇 张颖 钱钊 徐超 徐玉恒 |
| |
| 作者单位： | [1]School of Materials Science and Engineering, Harbin University of Science and Technology, Harbin 150080, China [2]School of Computer Science and Technology, Harbin Institute of Technology, Harbin 150080, China [3]Department of the applied chemistry, Harbin Institute of Technology, Harbin 150001, China |
| |
| 基金项目： | Project supported by Science and Technology Research Project of Education Bureau of Heilongjiang Province （12521093） |
| |
| 摘 要： | In:Ho:LiNbO3 crystals doped with various concentrations of In3+(0, 1 mol.%, 3 mol.%, 5 mol.%), fixed concentrations of Ho3+ (1 mol.%) were grown by Czochralski method. The X-ray powder diffraction, infrared and UV-visible absorption spectra were measured and modified. Judd-Ofelt approach was employed to study the effect of In doping on spectroscopic properties of Ho:LiNbO3 crystals. In concentrations in crystals were analyzed by an inductively coupled plasma optical emission spectrometry (ICP-OE/MS). For In (3 mol.%):Ho (1 mol.%):LiNbO3 crystal, the obtained intensity parameters were: Ω2=9.6563, Ω4=4.2195, Ω6=14.1526. The results showed that the Ω2 and Ω6 parameters increased with the increase of In3+ concentration. When the In doping concentration was up to 5 mol.%, Ω2 and Ω6 suddenly decreased. In2O3 incorporation had a strong effect on the radiative lifetime, but had less influence on fluorescence branching ratios. The effective distribution coefficient of In3+ in In:Ho:LiNbO3 crystals was less than 1 and increased with increasing concentration of In3+ in the melt.
|
| 关 键 词： | In:Ho:LiNbO3 UV-Vis absorption spectra IR transmission spectra Judd-Ofelt theory rare earths |
| 收稿时间： | 2011-11-25 |
| 本文献已被 CNKI 维普 万方数据 ScienceDirect 等数据库收录！ |
|
