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

Autor(es)

Garcia Rivera, Victor Anthony ^[1] ; Ferri, Fabio A. ^[2] ; Gehlen, Marcelo H. ^[3] ; Nunes, Luiz Antonio O. ^[4] ; Marega, Jr., Euclydes ^[4]

Afiliação do(s) autor(es)

^[1] Univ Nacl Mayor San Marcos, Fac Ciencias Fis, Lima - Peru

^[2] Univ Fed Sao Carlos, Dept Fis, Sao Carlos, SP - Brazil

^[3] Univ Fed Sao Carlos, Inst Quim Sao Carlos, Sao Carlos, SP - Brazil

^[4] Univ Fed Sao Carlos, Inst Fis Sao Carlos, Sao Carlos, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Optical Engineering; v. 57, n. 8 AUG 2018.
• Citações Web of Science: 0

Resumo

The excitation and emission obtained from an Er3+-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 Er3+-doped tellurite glass with embedded SNPs. The Er3+ 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 Er3+ ions via extraordinary optical transmission from the periodic nanostructures. Two coupling types are proposed: (i) one between the SNPs and the Er3+ 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 Er3+. 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. (C) 2018 Society of Photo-Optical Instrumentation Engineers (SPIE) (AU)

• Processo FAPESP: 17/01089-6 - Estudo da estabilidade química em vidros fosfatos
• Beneficiário: Fabio Aparecido Ferri
• Modalidade de apoio: Auxílio à Pesquisa - Regular