Visible up-conversion and near-infrared luminescence of Er3+/Yb3+ co-doped SbPO4-GeO2 glasses

Autor(es)

Manzani, D. ^[1] ; Montesso, M. ^[2] ; Mathias, C. F. ^[1] ; Krishanaiah, K. Venkata ^[2] ; Ribeiro, S. J. L. ^[1] ; Nalin, M. ^{[1, 3]}

Afiliação do(s) autor(es)

^[1] Sao Paulo State Univ, Inst Chem, UNESP, BR-14801970 Araraquara, SP - Brazil

^[2] Polytech Montreal, Dept Engn Phys, Stn Ctr Ville, POB 6079, Montreal, PQ - Canada

^[3] Univ Fed Sao Carlos, UFSCar, Dept Chem, BR-13560 Sao Carlos, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Optical Materials; v. 57, p. 71-78, JUL 2016.
• Citações Web of Science: 10

Resumo

Recent advances in glass chemistry have led to new multifunctional optical glasses of great technological importance. Glasses containing high amounts of antimony have been studied for use in nonlinear optics, near-infrared transmission, and as hosts for rare-earth ions in photonic devices. This work describes a luminescence study of Er3+ and Er3+/Yb3+ co-doping in a new SbPO4-GeO2 binary glass system. Near infrared and visible up-conversion emissions were observed in the green and red regions, which are enhanced when the samples are co-doped with Yb3+. Near-infrared emissions have good quantum efficiency and full width half maximum of 61 nm. Visible up-conversion emissions are governed by two photons and described by excited state absorption, energy transfer and cross-relaxation processes. (C) 2016 Elsevier B.V. All rights reserved. (AU)

• Processo FAPESP: 10/20776-5 - Fibras ópticas especiais à base de óxido de telúrio para aplicações ópticas não lineares
• Beneficiário: Danilo Manzani
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 13/07793-6 - CEPIV - Centro de Ensino, Pesquisa e Inovação em Vidros
• Beneficiário: Edgar Dutra Zanotto
• Modalidade de apoio: Auxílio à Pesquisa - Centros de Pesquisa, Inovação e Difusão - CEPIDs