Published September 15, 2009 | Version v1
Journal article

Frequency upconversion luminescence from Yb+3-Tm+3 codoped PbO-GeO2 glasses containing silver nanoparticles

  • 1. Departamento de Engenharia de Sistemas Eletronicos, Escola Politecnica da USP, 05508-900 Sao Paulo, SP (Brazil)
  • 2. Laboratorio de Vidros e Datacao, Faculdade de Tecnologia de Sao Paulo (FATEC-SP), CEETEPS/UNESP, 01124-060 Sao Paulo, SP (Brazil)
  • 3. Departamento de Fisica, Universidade Federal de Pernambuco, 50670-901 Recife, PE (Brazil)

Description

Infrared-to-visible and infrared-to-infrared frequency upconversion processes in Yb3+-Tm3+ doped PbO-GeO2 glasses containing silver nanoparticles (NPs) were investigated. The experiments were performed by exciting the samples with a diode laser operating at 980 nm (in resonance with the Yb3+ transition 2F7/2→2F5/2) and observing the photoluminescence (PL) in the visible and infrared regions due to energy transfer from Yb3+ to Tm3+ ions followed by excited state absorption in the Tm3+ ions. The intensified local field in the vicinity of the metallic NPs contributes for enhancement in the PL intensity at 480 nm (Tm3+:1G4→3H6) and at 800 nm (Tm3+:3H4→3H6).

Additional details

Identifiers

Publishing Information

Journal Title
Journal of Applied Physics
Journal Volume
106
Journal Issue
6
Journal Page Range
p. 063522-063522.4
ISSN
0021-8979
CODEN
JAPIAU

Optional Information

Notes
(c) 2009 American Institute of Physics