Frequency Upconversion in Er33+-Doped Alkali Lanthanum Gallate Glasses
Frequency upconversion of Er<3+> in alkali lanthanum gallate glasses (Na<,2>O-La<,2>O<,3>-Ga<,2>O<,3> or NLG) was investigated. Visible emissions at 532, 546, and 660nm corresponding to the <2>H<,11/2>→<4>I <,15/2>,<4>S<,3/2>→<4>I<,15/2>, and<4>F<,9/2>→ <4>I<,15/2> transitions were observed under continuous wave excitation at 980nm. The quadratic pump power dependence of these emissions indicated a two photon upconversion process. At a pump intensity of 52 W·cm<-2> at 980nm, frequency upconversion efficiencies of 1.1×10-2 and 2.7×10-3 were obtained for green and red emissions. respectively.
upconversion fluorescence glasses rare earths
Man Shiqing(满石清) Xiao Guina(肖桂娜) Lei Xinxian(雷新宪) Li Lin(李林) Bao Lei(鲍磊)
Department of Physics, Jinan University, Guangzhou 510632, China
国际会议
第五届国际稀土开发与应用研讨会(The Fifth International Conference on Rare Earth Decelopment and Applicatin)
包头
英文
318-320
2007-08-07（万方平台首次上网日期，不代表论文的发表时间）