Suitable Er3+-doped tellurite glass-based plasmonic structures for nanophotonic device applications

Victor Anthony Garcia Rivera; Fabio A. Ferri; Marcelo H. Gehlen; Luiz Antonio O. Nunes; Euclydes Marega

doi:10.1117/1.OE.57.8.085102

14 August 2018 Suitable Er³⁺-doped tellurite glass-based plasmonic structures for nanophotonic device applications

Victor Anthony Garcia Rivera, Fabio A. Ferri, Marcelo H. Gehlen, Luiz Antonio O. Nunes, Euclydes Marega

Author Affiliations +

Optical Engineering, Vol. 57, Issue 8, 085102 (August 2018). https://doi.org/10.1117/1.OE.57.8.085102

Abstract

The excitation and emission obtained from an Er^3 +-doped tellurite glass with embedded silver nanoparticles (SNPs) through nanostructured surfaces consisting of a square lattice of nanoholes (squares or circles) in a silver thin film are addressed. The periodic nanostructures were fabricated with a focused gallium ion beam on a silver thin film deposited onto an Er^3 +-doped tellurite glass with embedded SNPs. The Er^3 + microluminescence spectra were measured in the far field (510- to 590-nm wavelength range). The emission observed through the plasmonic nanoholes is caused by the excitation of the Er^3 + ions via extraordinary optical transmission from the periodic nanostructures. Two coupling types are proposed: (i) one between the SNPs and the Er^3 + ions (electric dipole type) and (ii) a resonant coupling between the SNPs (localized surface plasmon resonance) and a silver thin film (surface plasmon polariton). These two couplings modify the local field, which improves the emission intensity of Er^3 +. A dependence of the intensity emission with the geometrical shape of the nanoholes and the number of elements of the square lattice was observed. These findings can be very useful for nanophotonic device applications employing a transparent medium with optical gain.

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Victor Anthony Garcia Rivera, Fabio A. Ferri, Marcelo H. Gehlen, Luiz Antonio O. Nunes, and Euclydes Marega "Suitable Er³⁺-doped tellurite glass-based plasmonic structures for nanophotonic device applications," Optical Engineering 57(8), 085102 (14 August 2018). https://doi.org/10.1117/1.OE.57.8.085102

Received: 6 July 2018; Accepted: 31 July 2018; Published: 14 August 2018

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