Optical absorption and emission properties of Nd3+-doped oxyfluorosilicate glasses for solid state lasers

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：
INFRARED PHYSICS & TECHNOLOGY | 2014年 / 67卷
关键词：
Oxyfluorosilicate glasses; Neodymium; Raman; Judd-Ofelt theory; NIR emission; Solid state lasers; SPECTROSCOPIC PROPERTIES; ND3+ IONS; TELLURITE GLASSES; SILICATE GLASS; AL-PHOSPHATE; FLUORESCENCE; INTENSITIES; FABRICATION; ORIGIN; RAMAN;
D O I：
10.1016/j.infrared.2014.09.020
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
Optical absorption and near-infrared luminescent properties of Nd3+ ions doped oxyfluorosilicate (NKZLSNd) glasses were investigated. Raman spectrum was recorded to investigate the structural properties of NKZLSNd glasses. The Judd-Ofelt theory (JO) has been applied to the absorption spectrum of 1.0 mol% Nd3+-doped oxyfluorosilicate glass to derive the JO intensity parameters (Omega(lambda)), which are in turn used to calculate the radiative properties of Nd3+ ions luminescent levels. The near-infrared emission spectra recorded with 808 nm laser diode excitation revealed the effective bandwidths values around 30-40 nm for the F-4(3/2) level of Nd3+-doped oxyfluorosilicate glasses. The measured decay times of F-4(3/2) level decreased with increasing Nd3+ ions concentration due to the concentration quenching. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：555 / 559
页数：5
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