Visible-NIR emission and structural properties of Sm3+ doped heavy-metal oxide glass with composition B2O3-PbO-Bi2O3-GeO2

被引：59
作者：
Herrera, A. [1 ,2 ]
Fernandes, R. G. [3 ]
de Camargo, A. S. S. [3 ]
Hernandes, A. C. [3 ]
Buchner, S. [4 ]
Jacinto, C. [2 ]
Balzaretti, N. M. [1 ]
机构：
[1] Univ Fed Rio Grande do Sul, Inst Fis, Ave Bento Goncalves 9500 Caixa Postal 15051, BR-91501970 Porto Alegre, RS, Brazil
[2] Univ Fed Alagoas, Inst Fis, Grp Foton & Fluidos Complexos, BR-57072900 Maceio, AL, Brazil
[3] Univ Sao Paulo, Inst Fis Sao Carlos, Ave Trabalhador Saocarlense 400, BR-13566590 Sao Carlos, SP, Brazil
[4] Univ Fed Ciencias & Saude Porto Alegre, Rua Sarmento Leite 245, BR-90050170 Porto Alegre, RS, Brazil
来源：
JOURNAL OF LUMINESCENCE | 2016年 / 171卷
关键词：
Heavy metal oxide glasses; Samarium; Judd Ofelt theory; Photoluminescence; JUDD-OFELT ANALYSIS; OPTICAL-PROPERTIES; SILICATE-GLASSES; IONS; ABSORPTION; RAMAN; FLUORESCENCE; TRANSITIONS; INTENSITY; BORATE;
D O I：
10.1016/j.jlumin.2015.10.065
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A highly transparent Sm3+ glass with composition B2O3-PbO-Bi2O3-GeO2 was obtained by the traditional melt quenching technique and characterized from structural and spectroscopic points of view. Analysis by X-ray diffraction and Raman spectroscopy confirmed the amorphous nature of the sample and revealed the expected low phonon energy. Differential thermal analysis was also carried out to obtain the glass transition and the crystallization temperatures, related to the thermal stability of the sample. Judd-Ofelt theory was applied to evaluate phenomenological intensity parameters Omega(lambda) (lambda=2, 4 and 6) from the optical absorption measurements. The transition probabilities, radiative lifetimes, branching ratio and stimulated emission cross-section were also calculated. Photoluminescence spectra recorded in the visible and infrared regions revealed intense green, orange, red and near infrared emission bands providing a new trace to develop tunable laser and optoelectronics devices. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：106 / 111
页数：6
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