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- Title
Plasmonic Coupling in Er:Au Tellurite Glass.
- Authors
Osorio, Sérgio; Rivera, Victor; Nunes, Luiz; Marega, Euclydes; Manzani, Danilo; Messaddeq, Younes
- Abstract
In this paper, we report on luminescence and absorbance effects of Er:Au-doped tellurite glasses synthesized by a melting-quenching and heat treatment technique. After annealing times of 2.5, 5.0, 7.5, and 10.0 h, at 300 °C, the gold nanoparticles (GNP) effects on the Er are verified from luminescence spectra and the corresponding levels lifetime. The localized surface plasmon resonance around 800 nm produced a maximum fluorescence enhancement for the band ranging from 800 to 840 nm, corresponding to the transitions H → I (805 nm) and S → I (840 nm), with annealing time till 7.5 h. The measured lifetime of the levels H and S confirmed the lifetime reduction due to the energy transfer from the GNP to Er, causing an enhanced photon emission rate in these levels.
- Subjects
GOLD nanoparticle synthesis; ERBIUM; TELLURITES; SURFACE plasmon resonance; FLUORESCENCE; HEAT treatment; ANNEALING of metals; PHOTON emission
- Publication
Plasmonics, 2012, Vol 7, Issue 1, p53
- ISSN
1557-1955
- Publication type
Article
- DOI
10.1007/s11468-011-9275-7