Fluorescence and Judd-Ofelt Analysis of Er3+ Doped CaF2 Transparent Ceramic

被引：3

作者：

Xing, Ruzhen ^{[1
]}

Mei, Bingchu ^{[1
]}

Song, Jinghong ^{[2
]}

Li, Xiaonv ^{[1
]}

机构：

[1] Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China

[2] Wuhan Univ Technol, Ctr Mat Res & Anal, Wuhan 430070, Peoples R China

来源：

MATERIALS RESEARCH AND APPLICATIONS, PTS 1-3 | 2014年 / 875-877卷

基金：

中国国家自然科学基金;

关键词：

CaF2 transparent ceramic; Er3+; Spectroscopic properties; Judd-Ofelt theory; laser material; RARE-EARTH IONS; SPECTROSCOPIC PROPERTIES; LUMINESCENCE; INTENSITIES; CRYSTAL; LASER;

D O I：

10.4028/www.scientific.net/AMR.875-877.23

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper, we evaluated the spectra parameters of Er3+.The absorption spectra of Er3+:CaF2 transparent ceramic was measured at room temperature (RT). Based on the Judd-Ofelt theory, the intensity parameters were Omega(2)=5.02x10(-20) cm(2), Omega(4) = 3.40x10(-20) cm(2) and Omega(6) = 0.38x10(-20) cm(2), and then the values of the radiative transition probabilities, radiative lifetimes and integrated emission cross-sections of excited states were calculated. Full width at half maximum (FWHM) of the fluorescence spectra for I-4(13/2)-> I-4(15/2) transition was investigated, being 17nm. The decay time was found to be 24.3ms, which is longer than the theoretically calculated value indicating a radiation trapping effect in this work.

引用

页码：23 / +

页数：2

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