Efficient plasmonic coupling between Er3 +:(Ag/Au) in tellurite glasses

V. A.G. Rivera, Y. Ledemi, S. P.A. Osorio, D. Manzani, Y. Messaddeq, L. A.O. Nunes, E. Marega

Research output: Contribution to journalArticle

72 Scopus citations

Abstract

We report a systematic study of the localized surface plasmon resonance effects on the photoluminescence of Er3 +-doped tellurite glasses containing Silver or Gold nanoparticles. The Silver and Gold nanoparticles are obtained by means of reduction of Ag ions (Ag+ → Ag0) or Au ions (Au3 + → Au0) during the melting process followed by the formation of nanoparticles by heat treatment of the glasses. Absorption and photoluminescence spectra reveal particular features of the interaction between the metallic nanoparticles and Er3 + ions. The photoluminescence enhancement observed is due to dipole coupling of Silver nanoparticles with the 4I13/2 → 4I 15/2 Er3 + transition and Gold nanoparticles with the 2H11/2 → 4I13/2 (805 nm) and 4S3/2 → 4I13/2 (840 nm) Er 3 + transitions. Such process is achieved via an efficient coupling yielding an energy transfer from the nanoparticles to the Er3 + ions, which is confirmed from the theoretical spectra calculated through the decay rate. © 2011 Published by Elsevier B.V. All rights reserved.
Original languageAmerican English
Pages (from-to)399-405
Number of pages7
JournalJournal of Non-Crystalline Solids
DOIs
StatePublished - 15 Jan 2012
Externally publishedYes

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