Study on the green upconversion saturation in Er3+ doped oxyfluoride tellurite glass
来源期刊：JOURNAL OF RARE EARTHS2009年第2期
论文作者：DONG Liqiang DUAN Xiaoxia WEN Hongyu HUANG Shihua KANG Kai
Key words：upeonversion; saturation; rate equations; rare earths;
Abstract: The upconversion emission spectra of Er3+ 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 ob-served 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.
DONG Liqiang1，DUAN Xiaoxia1，WEN Hongyu2，HUANG Shihua1，KANG Kai1
(1.Key Laboratory of Luminescence and Optical Information(Ministry of Education;
2.Research Institute of Chemical Defense,Beijing 102205,China)
Abstract:The upconversion emission spectra of Er3+ 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 ob-served 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.
Key words:upeonversion; saturation; rate equations; rare earths;
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