Optical studies of Sm3+ doped oxyfluoroborate glass

被引：104

作者：

Mahato, KK ^{[1
]}

Rai, DK ^{[1
]}

Rai, SB ^{[1
]}

机构：

[1] Banaras Hindu Univ, Dept Phys, Laser & Spect Lab, Varanasi 221005, Uttar Pradesh, India

来源：

SOLID STATE COMMUNICATIONS | 1998年 / 108卷 / 09期

关键词：

disordered systems; optical properties; luminescence;

D O I：

10.1016/S0038-1098(98)00442-6

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Rare earth ion doped oxyfluoroborate glasses have been prepared with different concentration of Sm3+. The UV-Vis-NIR optical absorption, laser induced fluorescence and photoacoustic spectra of Sm3+ in this lattice have been studied. Optical parameters such as oscillator strength, stimulated emission cross-section, transition probability, radiative lifetime etc. have been calculated. Lifetime of the (4)G(5/2) level at various concentrations of Sm3+ have been used to explain the concentration dependent fluorescence quenching. The mechanism of quenching was found to involve quadrupole-quadrupole coupling. (C) 1998 Elsevier Science Ltd. All rights reserved.

引用

页码：671 / 676

页数：6

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