Spectral investigations of Sm3+-doped oxyfluorosilicate glasses

被引：50

作者：

Ramachari, D. ^{[1
]}

Moorthy, L. Rama ^{[1
,2
]}

Jayasankar, C. K. ^{[1
]}

机构：

[1] Sri Venkateswara Univ, Dept Phys, Tirupati 517502, Andhra Pradesh, India

[2] Chadalawada Ramanamma Engn Coll, Dept Phys, Tirupati 517506, Andhra Pradesh, India

来源：

MATERIALS RESEARCH BULLETIN | 2013年 / 48卷 / 09期

关键词：

Glasses; Infrared spectroscopy; Raman spectroscopy; X-ray diffraction; Optical properties; NONLINEAR-OPTICAL PROPERTIES; SM3+ IONS; SPECTROSCOPIC PROPERTIES; TELLURITE GLASS; SILICATE; BLUE; CRYSTALLIZATION; BORATE; RAMAN; ND3+;

D O I：

10.1016/j.materresbull.2013.05.081

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Sm2O3-doped oxyfluorosilicate glasses were prepared by melt-quenching method. The differential thermal analysis and X-ray diffraction were carried out to investigate the glass transition temperature and structure of precursor glass. Infrared spectroscopy, Raman, optical absorption, photoluminescence and decay measurements were carried out for Sm3+-doped oxyfluorosilicate glasses. From the absorption spectrum, the Judd-Ofelt intensity parameters have been evaluated to predict the radiative properties for the emission levels of Sm3+ ions. The lifetimes of (4)G(5/2) level are found to decrease from 1.17 to 0.93 ms due to the energy transfer, when the concentration of Sm3+ ions increases from 0.1 to 2.0 mol%. The optical gain parameter (18.13 x 10(-25) cm(2) s) of the investigated glass is found to be higher than the other Sm2O3-doped glass systems. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：3607 / 3613

页数：7

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