Thermal stability and spectroscopic properties of Ho3＋ doped tellurite-borate glasses

• Published in: Journal of rare earths Vol. 33; no. 9; pp. 939 - 945
• Main Author: 杨艳民 刘延洲 蔡培庆 Ramzi Maalej Hyo Jin Seo
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.09.2015
• Subjects: cross sections; Ho3; J-O参数; line shapes; rare earths; Stark能级; tellurite-borate glasses; 光谱性质; 吸收截面; 热稳定性; 碲酸盐玻璃; 稀土离子掺杂; 辐射跃迁几率; cross sections; line shapes; tellurite-borate glasses; Ho3; rare earths
• ISSN: 1002-0721; 2509-4963
• DOI: 10.1016/S1002-0721(14)60509-3

Ho3＋ ions doped tellurite-borate glass samples with varying compositions were prepared. The compositional dependence on phenomenological Judd-Ofelt parameters was compared in different kinds of rare earth ions doped tellurite-borate glasses. Two methods were used to obtain radiative transition probability of 517 level with the aim of assuring the fitting quality. The integral absorption cross-sections and line shapes corresponding to 518--.5G6 and 518---5I7 transition of Ho3＋ ions were investigated in tellurite-borate glasses. The obtained data indicated that the integral absorption cross-sections corresponding to 518-5G6 transition of Ho3＋ ions mainly depended on phenomenological Judd-Ofelt parameter, g22, because 518---5G6 transition belonged to hypersensitive transitions, which led to a larger gP2 value. The change of line shapes of absorption spectra corresponding to 518-5G6 and 518-517 transitions of Ho3＋ ions came from the lower energy regions, which could be attributed to the changed distribution of Stark levels and thermal population.