Open AccessLuminescence properties of Yb3+/Na+ codoped CaF2 crystal and laser operation with low threshold
Author(s) -
Li Chai,
Yan Shi,
Xue Ying-Hong,
Qingwen Liu,
Qingyue Wang,
Su Liang-Bi,
Xinguang Xu,
Guangjun Zhao,
Jun Xu
Publication year - 2007
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.56.3553
Subject(s) - luminescence , materials science , laser , crystal (programming language) , doping , optoelectronics , optics , analytical chemistry (journal) , physics , chemistry , chromatography , computer science , programming language
Basing on measuring the luminescence spectra at room temperature pumped by 975nm light, the action mechanism of Na+ in the novel Yb3+,Na+:CaF2 crystal was systemically investigated. The relation between the concentration of doping Na+ and the laser operation threshold was analyzed. The optimum match concentration for Yb3+,Na+:CaF2 with low laser threshold was obtained. In the experiment, the lowest laser operation threshold at only 70mW of absorbing pumped power for 2%Yb3+, 3%Na+:CaF2 crystal is realized, which is in good agreement with the analysis of luminescence properties.