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

Author(s)

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

Affiliation

^[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

• Document type: Journal article
• Source: Optical Materials; v. 57, p. 71-78, JUL 2016.
• Web of Science Citations: 10

Abstract

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)

• FAPESP's process: 10/20776-5 - Special optical fiber based on tellurium oxide for nonlinear applications
• Grantee: Danilo Manzani
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• FAPESP's process: 13/07793-6 - CEPIV - Center for Teaching, Research and Innovation in Glass
• Grantee: Edgar Dutra Zanotto
• Support Opportunities: Research Grants - Research, Innovation and Dissemination Centers - RIDC