科研之友
微信
新浪微博
Facebook
分享链接
摘要
A co-doped LiNb0.3Ta0.7O3: Er3+, Yb3+ ceramic was prepared by a high temperature solid state procedure. Under the excitation of 980 nm laser radiation, intense 660 nm red light and 550 nm green light emissions corresponding to the F-4(9/2)-> I-4(15/2) and (H11/2IS3/2)-H-2-S-4 -> I-4(15/2) transitions of Er3+ were observed. The change of Yb3+ concentration has a more significant influence on luminous intensity than the Er3+ concentration. The emission of red and green lights is attributed to a two-photon process. The upconversion luminescence mechanisms were analyzed in detail.
- 出版日期2014
- 单位哈尔滨学院; 哈尔滨工业大学
