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Plasmonic Coupling in Er3+:Au Tellurite Glass

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Abstract

In this paper, we report on luminescence and absorbance effects of Er+3: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+3 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 4H11/2 → 4I13/2 (805 nm) and 4S3/2 → 4I13/2 (840 nm), with annealing time till 7.5 h. The measured lifetime of the levels 4H11/2 and 4S3/2 confirmed the lifetime reduction due to the energy transfer from the GNP to Er+3, causing an enhanced photon emission rate in these levels.

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Acknowledgments

This work was financially supported by the Brazilian agencies CNPq, Fapesp, and CEPOF/INOF.

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Authors and Affiliations

  1. Instituto de Física de São Carlos, INOF, USP, Caixa Postal 369, 13560-970, São Carlos, São Paulo, Brazil

    Sérgio P. A. Osorio, Victor A. Garcia Rivera, Luiz Antonio O. Nunes & Euclydes Marega Jr.

  2. Instituto de Química de Araraquara—UNESP, Araraquara, São Paulo, Brazil

    Danilo Manzani & Younes Messaddeq

Authors
  1. Sérgio P. A. Osorio
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  2. Victor A. Garcia Rivera
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  3. Luiz Antonio O. Nunes
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  4. Euclydes Marega Jr.
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  5. Danilo Manzani
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  6. Younes Messaddeq
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Correspondence to Sérgio P. A. Osorio.

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Osorio, S.P.A., Rivera, V.A.G., Nunes, L.A.O. et al. Plasmonic Coupling in Er3+:Au Tellurite Glass. Plasmonics 7, 53–58 (2012). https://doi.org/10.1007/s11468-011-9275-7

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