%0 Journal Article
%T Optical transitions and upconversion properties of Er3+-doped chloride tellurite glasses<br>Optical transitions and upconversion properties of Er^3＋-doped chloride tellurite glasses
%A Wen Lei
%A Li Shun-Guang
%A Huang Guo-Song
%A Hu Li-Li
%A Jiang Zhong-Hong
%A <br>温磊
%A 李顺光
%A 黄国松
%A 胡丽丽
%A 姜中宏
%J 中国物理 B
%D 2004
%I 
%X Er^{3+}-doped lead chloride tellurite glasses were prepared using the conventional melting and quenching method. The absorption spectra were measured and the Judd－Ofelt analysis was performed. The spectroscopic parameters such as the intensity parameters, transition probabilities, radiative lifetimes, and branching ratios were obtained. Intense infrared emission and visible upconversion luminescence under 976 nm excitation were observed. For the 1.55μm emission, the full width at half maximum and the emission cross sections are more than 50 nm and 8×10^{- 20}cm^2, respectively. Three efficient visible luminescences centred at 525, 547, and 658nm are assigned to the transitions from the excited states {}^{2}H_{11/2}, {}^{4}S_{3/2}, and {}^{4}F_{9/2} to the ground state {}^{4}I_{15/2}, respectively. The upconversion mechanisms and the power-dependent intensities are also discussed and evaluated.
%K upconversion material
%K chloride tellurite glass
%K spectroscopy
%K Er^{3+} ion<br>铒离子掺杂
%K 光学转换
%K 氯化物亚碲酸盐玻璃
%K 发射截面
%K 基态
%K 发光材料
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=CD8D6A6897B9334F09D8D1648C376FB4&aid=6CA52B0AE0336DB3CB1B3F8A7F54A958&yid=D0E58B75BFD8E51C&vid=FC0714F8D2EB605D&iid=0B39A22176CE99FB&sid=B799C1769FCACDC8&eid=96A53C367B5173D7&journal_id=1009-1963&journal_name=中国物理&referenced_num=0&reference_num=21