Spectroscopic properties of Er3+ ions in transparent oxyfluoride glass ceramics containing CaF2 nano-crystals

被引：64

作者：

Chen, DQ ^{[1
]}

Wang, YS ^{[1
]}

Yu, YL ^{[1
]}

Ma, E ^{[1
]}

Hu, ZJ ^{[1
]}

机构：

[1] Chinese Acad Sci, Fujian Inst Res Struct Matter, Grad Sch, State Key Lab Struct Chem, Fujian 350002, Peoples R China

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2005年 / 17卷 / 41期

关键词：

D O I：

10.1088/0953-8984/17/41/024

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

In this paper, the spectroscopic properties of Er3+-doped oxyfluoride glass ceramics containing CaF2 nano-crystals are systematically investigated. X-ray diffraction (XRD) and transmission electron microscope (TEM) experiments confirmed the formation of CaF2 nano-crystals in the glassy matrix. Based on the Judd-Ofelt theory, the intensity parameters Omega(2,4,6), spontaneous emission probability, radiative life, radiative quantum efficiency, width of the emission line, stimulated emission cross-section and gain spectrum were evaluated, and the effect of Er3+ doping concentration on the spectroscopic properties of the I-4(13/2) -> I-4(15/2) transition is discussed. For glass ceramics, intense red and weak green up-conversion luminescence were observed and ascribed to two-photon absorption processes.

引用

页码：6545 / 6557

页数：13

共 30 条

[1] Growth by molecular beam epitaxy and characterization of CaF2:Pr3+ planar waveguides [J].