稀土学报(英文版)
稀土學報(英文版)
희토학보(영문판)
JOURNAL OF RARE EARTHS
2015年
9期
939-945
,共7页
杨艳民%刘延洲%蔡培庆%Ramzi Maalej%Hyo Jin Seo
楊豔民%劉延洲%蔡培慶%Ramzi Maalej%Hyo Jin Seo
양염민%류연주%채배경%Ramzi Maalej%Hyo Jin Seo
Ho3+%tellurite-borate glasses%cross sections%line shapes%rare earths
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 5I7 level with the aim of assuring the fitting quality. The integral ab-sorption cross-sections and line shapes corresponding to 5I8→5G6 and 5I8→5I7 transition of Ho3+ions were investigated in tellurite-borate glasses. The obtained data indicated that the integral absorption cross-sections corresponding to 5I8→5G6 transition of Ho3+ions mainly depended on phenomenological Judd-Ofelt parameter,?2, because 5I8→5G6 transition belonged to hypersensitive transitions, which led to a larger?2 value. The change of line shapes of absorption spectra corresponding to 5I8→5G6 and 5I8→5I7 transitions of Ho3+ions came from the lower energy regions, which could be attributed to the changed distribution of Stark levels and thermal population.