Study on the green upconversion saturation in Er^(3+) doped oxyfluoride tellurite glass  

作　　者：董力强 黄世华 温红宇 康凯 段晓霞 

机构地区：[1]Key Laboratory of Luminescence and Optical Information (Ministry of Education),Institute of OptoelectronicTechnology,Beijing Jiaotong University,Beijing 100044,China [2]Research Institute of Chemical Defense,Beijing 102205, China

出　　处：《Journal of Rare Earths》2009年第2期334-337,共4页稀土学报（英文版）

基　　金：supported by the National Natural Science Foundation of China (10774012,10434030);Beijing Jiaotong University Program (2007XM048,2006XM038)

摘　　要：The upconversion emission spectra of Er^3＋ doped oxyfluoride tellurite glasses excited by 808 nm laser diode （LD） were measured. The dependence of 550 nm upconversion emission on the excitation intensity was analyzed. Quadratic intensity dependence was only observed at weak excitation intensity. With increasing the excitation intensity, saturation was turned out. The experimental results were fitted to a model based on the rate equations.The upconversion emission spectra of Er^3＋ doped oxyfluoride tellurite glasses excited by 808 nm laser diode （LD） were measured. The dependence of 550 nm upconversion emission on the excitation intensity was analyzed. Quadratic intensity dependence was only observed at weak excitation intensity. With increasing the excitation intensity, saturation was turned out. The experimental results were fitted to a model based on the rate equations.

关 键 词：UPCONVERSION SATURATION rate equations rare earths 

分 类 号：O614.33[理学—无机化学]