Energy upconversion luminescence in neodymium-doped tellurite glass

被引：0

作者：

Amorim, H.T. ^{[1
]}

Vermelho, M.V.D. ^{[2
]}

Gouveia-Neto, A.S. ^{[2
]}

Cassanjes, F.C. ^{[3
]}

Ribeiro, S.J.L. ^{[3
]}

Messaddeq, Y. ^{[3
]}

机构：

[1] CEFET/AL, Marechal Deodoro Unit, Marechal Deodoro, AL, Brazil

[2] Departamento de Física, Universidade Federal de Alagoas, Maceió 57072/970, AL, Brazil

[3] Instituto de Química, UNESP, Araraquara 14800/900, SP, Brazil

来源：

Journal of Alloys and Compounds | 2002年 / 346卷 / 1-2期

基金：

巴西圣保罗研究基金会;

关键词：

Doping (additives) - Luminescence - Neodymium - Optical materials - Positive ions - Tellurium compounds;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Infrared-to-visible upconversion luminescence emission in Nd3+-doped 60TeO2-10GeO2-10K2O-10Li2O-10Nb 2O5 tellurite glasses under cw excitation around 800 nm is investigated. Blue (430, and 475 nm), green (530 nm) and yellow-orange (590 nm) energy upconversion emission owing to the 2P1/2&rarr4Ij (j=9/2, 11/2, 13/2 and 15/2) transitions of the Nd3+ ions, respectively, was recorded. The dependence of the upconversion intensity upon the excitation wavelength and pump power is also studied. The upconversion excitation mechanism responsible for the observed emission signals is attributed to stepwise multiphoton absorption. © 2002 Elsevier Science B.V. All rights reserved.

引用

页码：282 / 284