Open Access2.9 μm luminescence properties of Pr3+/Ho3+ codoped Ge-Ga-Se glasses
Author(s) -
Jiangfeng Zhu,
Shixun Dai,
Xunsi Wang,
Xiang Shen,
Tao Xu,
Qiuhua Nie
Publication year - 2010
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.59.5803
Subject(s) - materials science , ion , luminescence , fluorescence , absorption (acoustics) , chalcogenide , analytical chemistry (journal) , doping , quenching (fluorescence) , excitation , absorption cross section , absorption spectroscopy , cross section (physics) , atomic physics , optics , optoelectronics , physics , chemistry , chromatography , quantum mechanics , composite material
A series of chalcogenide glasses based on Ge25Ga10Se65 system co-doped with Ho3+/Pr3+ ions of different ratios were synthesized by melt-quenching technique. The absorption spectra,mid-infrared fluorescence and lifetime of glass samples under 908 nm laser excitation were measured. The emission cross section of Ho3+:5I7→5I8 and absorption cross section of Pr3+:3H4→3F2 were calculated. The energy transfer efficiency between Ho3+ and Pr3+ ions with different Pr3+ ion concentrations have been discussed. Through fitting the 2.0 μm fluorescence decay curves of Ho3+ ions,the energy transfer regime was judged. The results prove thatTm3+ is an efficient sensitizer which enhances the Ho3+: 2.9 μm fluorescence intensity significantly.