Fluorescent Emissions (1800 nm) of LiLuF4 Single Crystals Doped with Various Tm3+ Concentrations

CORC > 宁波材料技术与工程研究所 > 中国科学院宁波材料技术与工程研究所 > 2014专题

	Fluorescent Emissions (1800 nm) of LiLuF4 Single Crystals Doped with Various Tm3+ Concentrations
	Li Shan-Shan ; Xia Hai-Ping ; Fu Li ; Dong Yan-Ming ; Zhang Jia-Zhong ; Gu Xue-Mei ; Zhang Jian-Li ; Wang Dong-Jie ; Jiang Hao-Chuan ; Chen Bao-Jiu
刊名	ACTA PHYSICO-CHIMICA SINICA
	2014
卷号	30 期号:9 页码:1752
中文摘要	LiLuF4 single crystals doped with molar fractions of 0.45%, 0.90%, 1.63%, and 3.25% (x, molar fraction) Tm3+ ions were fabricated by an improved Bridgman method. Absorption spectra in the 400-2000 nm region of the crystals were measured. The emissions from 1400 to 2000 nm under excitation of an 808-nm laser diode (LD) were carried out and compared. Two emission bands at 1470 and 1800 nm were observed. First, the emission intensity at 1800 nm increased with the increase in Tm3+ concentration, reaching a maximum value when the Tm3+ concentration was ca 0.90%. Thereafter, it decreased considerably as the Tm3+ doping levels further increased to 3.25%. However, the emission intensity at 1470 nm showed the contrary tendency to that at 1800 nm. It was found that the 1800-nm emission lifetime of the Tm3+:F-3(4) manifold systematically decreased with an increase in Tm3+ concentration. The trend in the fluorescent intensity change can be explained by the cross-relaxation (H-3(6), H-3(4)-> F-3(4), F-3(4)) between the Tm3+ ions and the concentration quenching effect of Tm3+. Meanwhile, the emission cross-section was calculated, providing a maximum of 0.392x10(-20) cm(2) at 1890 nm for the 0.90% doped sample. Based on the measured lifetime and calculated radiative lifetime, the largest quantum efficiency between Tm3+ ions reached similar to 120%.
公开日期	2015-09-20
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/11761]
专题	宁波材料技术与工程研究所_2014专题
推荐引用方式 GB/T 7714	Li Shan-Shan,Xia Hai-Ping,Fu Li,et al. Fluorescent Emissions (1800 nm) of LiLuF4 Single Crystals Doped with Various Tm3+ Concentrations[J]. ACTA PHYSICO-CHIMICA SINICA,2014,30(9):1752.
APA	Li Shan-Shan.,Xia Hai-Ping.,Fu Li.,Dong Yan-Ming.,Zhang Jia-Zhong.,...&Chen Bao-Jiu.(2014).Fluorescent Emissions (1800 nm) of LiLuF4 Single Crystals Doped with Various Tm3+ Concentrations.ACTA PHYSICO-CHIMICA SINICA,30(9),1752.
MLA	Li Shan-Shan,et al."Fluorescent Emissions (1800 nm) of LiLuF4 Single Crystals Doped with Various Tm3+ Concentrations".ACTA PHYSICO-CHIMICA SINICA 30.9(2014):1752.