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高光强激发下Er³⁺/Yb³⁺共掺TiBa玻璃的绿光上转换发光

Up-conversion green emission of Er³⁺ / Yb³⁺-codoped TiBa glass under high light intensity excitation

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【Author】 Wang Ji You 1) Guo Wei Lin 2) Lin Zhi Ming 2) Song Guang Zhi 2) Zhao Li Juan 3) Zhang Cun Zhou 3) Zhang Guang Yin 3) 1) (Institute of Optoelectronic Technology, Northern Jiaotong University;Ministr

【机构】北方交通大学光电子技术研究所铁道部信息存储与显示材料部级开放实验室；中国科学院理化研究所微珠材料工程研究中心；南开大学物理学院光子学研究中心；南?；

【摘要】制备了Er3+ Yb3+ 共掺微米级高折射率TiBa玻璃颗粒和微球 ,玻璃基材主要成分为TiO2 BaCO3 Ba(NO3) 2 CaCO3 SiO2 等 ,掺入 1mol%Er2 O3+3mol%Yb2 O3.用 976nm激光激发测量了它们的上转换绿光发射 ,发现当抽运功率大于 30mW(功率密度约为 10 0 0W·cm- 2 )时 ,5 2 4nm峰的强度大于 5 4 7nm峰的强度 ,随功率的增大 ,其强度差越来越大 ,实验判断 ,这是由于材料吸收抽运光而升温所致更多还原

【Abstract】 The TiBa glass codoped with Er 3+ and Yb 3+ for up conversion emission were designed. The components of the glass sample is 25TiO 2 27BaCO 3 8Ba(NO 3) 2 6ZnO 2 9CaCO 3 5H 3BO 3 10SiO 2 10water glass (wt.%),and 1mol%Er 2O 3+3mol%Yb 2O 3. When the pump power is above 30mW (light intensity about 1000W·cm -2 ) the luminescence intensity of 524nm emission is stronger than the luminescence intensity of 547nm emission. We propose that the reason is that the population of electrons in 2H 11/2 and 4S 3/2 has changed with the increase of the temperature of materials.更多还原