Rate equation model analysis on the infrared and upconversion emission of Er/Yb co-doped borate-silicate glass
来源期刊：JOURNAL OF RARE EARTHS2010年第2期
论文作者：李善锋 张敏 彭扬 张庆瑜 赵明山
文章页码：237 - 242
摘 要：Er/Yb co-doped borate-silicate glasses with various Yb concentrations were fabricated by high-temperature solid-reaction method.The photoluminescence spectra around 1.55 μm and the visible upconversion spectra were measured.The radiative lifetime of Er-4I13/2,com-pared with the measured one,was obtained by Judd-Ofelt theory based on the absorption spectra.A rate equation model for Er/Yb co-doped system has been established based on the data obtained from the measurements,including the absorption and emission cross section,and decay rate of Er-4I13/2 level,etc.Ground-state absorption,excited-state absorption,together with the energy transfer among Er3+ ions and Er3+/Yb3+ ions were considered in the model.The results from the simulation were compared with the experimental ones.Through the model,a much better comprehension on the Er/Yb doped system was expressed.
李善锋，张敏，彭扬，张庆瑜，赵明山
School of Physics & Optoelectronic Engineering,Dalian University of Technology
摘 要：Er/Yb co-doped borate-silicate glasses with various Yb concentrations were fabricated by high-temperature solid-reaction method.The photoluminescence spectra around 1.55 μm and the visible upconversion spectra were measured.The radiative lifetime of Er-4I13/2,com-pared with the measured one,was obtained by Judd-Ofelt theory based on the absorption spectra.A rate equation model for Er/Yb co-doped system has been established based on the data obtained from the measurements,including the absorption and emission cross section,and decay rate of Er-4I13/2 level,etc.Ground-state absorption,excited-state absorption,together with the energy transfer among Er3+ ions and Er3+/Yb3+ ions were considered in the model.The results from the simulation were compared with the experimental ones.Through the model,a much better comprehension on the Er/Yb doped system was expressed.
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