UV and visible upconversion luminescence in Er^3＋：YAG under red laser excitation  

作　　者：杨海贵 戴振文 祖宁宁 

机构地区：[1]Department of Physics, Jilin University, Key Laboratory of Coherent Light, Atomic and Molecular Spectroscopy, Ministry of Education, Changchun 130023, China

出　　处：《Chinese Physics B》2007年第6期1650-1654,共5页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China （Grant No 10074020）.Acknowledgement The authors would like to thank Professor Siyuan Zhang for providing Er^3＋：YAG crystal.

摘　　要：This paper reports that the ultraviolet and visible upconversion luminescence from the ^4S3/2, ^2G9/2 and ^2P3/2 levels have been observed in Er^3＋：YAG following 647.2 nm excitation of the ^4F9/2 multiple. Upconversion luminescence intensity dependence on pump power was recorded. The measured decay profiles were theoretically fitted by kinetics theory and the basically good agreements were achieved. The results indicate that some energy transfer processes proposed to explain the observed upconversion phenomena are reasonable.This paper reports that the ultraviolet and visible upconversion luminescence from the ^4S3/2, ^2G9/2 and ^2P3/2 levels have been observed in Er^3＋：YAG following 647.2 nm excitation of the ^4F9/2 multiple. Upconversion luminescence intensity dependence on pump power was recorded. The measured decay profiles were theoretically fitted by kinetics theory and the basically good agreements were achieved. The results indicate that some energy transfer processes proposed to explain the observed upconversion phenomena are reasonable.

关 键 词：UPCONVERSION luminescence dynamics Er^3＋：YAG 

分 类 号：TN248.1[电子电信—物理电子学]