Up-conversion spectrum properties of the oxy-fluoride glass co-doped with Er3+ and Yb3+


Autoria(s): Liang HL; Yang KS; Zhang XY; Machida K; Meng H
Data(s)

2006

Resumo

Up-conversion of 45PbF(2)-45GeO(2)-10WO(3) oxy-fluoride glasses co-doped with Yb3+ and Er3+ ions were prepared by fusion method through melting at 1223 K and then annealing at 653 K for 4 h. Transmittance of the undoped host glass was beyond 73% in a range of 0.6-2.5 mu m and the co-doped glasses still provided good transmittance beyond 50%. Refractive indices of the host and co-doped glasses were 1.517 and 1.650, respectively. Blue, green and red fluorescence spectra were observed in a range of 400-700 nm under 980 nm diode laser excitation. Up-conversion spectra at about 410, 518, 530and 650 nm were assigned to the 4f electron transitions of H-2(9/2) -> I-4(15)/(2), H-2(15/2) -> I-4(15/2) S-4(3/2) -> I-4(15/2) and F-4(9/2) -> I-4(15/2) of Er3+ ion, respectively. The mechanism of energy transfer between Yb3+ and Er3+ ions in the glass was analyzed. Raman shift shows the non-radiative relaxation of the glass sample is low.

Identificador

http://ir.ciac.jl.cn/handle/322003/16557

http://www.irgrid.ac.cn/handle/1471x/152270

Idioma(s)

英语

Fonte

Liang HL;Yang KS;Zhang XY;Machida K;Meng H.Up-conversion spectrum properties of the oxy-fluoride glass co-doped with Er3+ and Yb3+,JOURNAL OF ALLOYS AND COMPOUNDS,2006,408():835-837

Palavras-Chave #ENERGY-TRANSFER #LUMINESCENCE #CERAMICS #IONS
Tipo

期刊论文