Optical studies of Eu3+ doped oxyfluoroborate glass

被引：59

作者：

Mahato, KK

Rai, SB ^{[1
]}

Rai, A

机构：

[1] Banaras Hindu Univ, Dept Phys, Varanasi 221005, Uttar Pradesh, India

[2] Banaras Hindu Univ, Inst Technol, Dept Appl Chem, Varanasi 221005, Uttar Pradesh, India

来源：

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2004年 / 60卷 / 04期

关键词：

oxyfluoroborate glass; photoacoustic spectrum; stimulated emission cross-section; fluorescence quenching; energy transfer;

D O I：

10.1016/S1386-1425(03)00328-7

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

Rare earth doped oxyfluoroborate glasses have been prepared with different concentration of Eu3+. The UV-Vis/NIR optical absorption, laser induced fluorescence and photoacoustic spectra of Eu3+ in this host have been Studied. Different optical parameters Such as oscillator strength, Judd-Ofelt intensity parameter, stimulated emission cross-section, transition probability, branching ratio and radiative lifetime, etc. have been calculated. Lifetime of the D-5(0) level at various concentrations of Eu3+ have been used to explain the concentration dependent fluorescence quenching. The mechanisin of quenching was found to he dipole-dipole. Energy transfer have also been Studied frorn Eu3+ to Pr3+ in sample with 1 mol% Eu3+ + 1 mol% Pr3+. (C) 2003 Published by Elsevier B.V.

引用

页码：979 / 985

页数：7

共 25 条

[1] SITE SELECTION USING LASER-INDUCED FLUORESCENCE SPECTROSCOPY OF THE EU-3+ PROBE IONS IN OXIDE GLASS HOSTS - A REVIEW AND SOME NEW RESULTS [J].