Demonstration of multiple quantum interference and Fano resonance realization in far-field from plasmonic nanostructure in Er3+-doped tellurite glass

Autor(es)

Lozano, G. C. ; Silva, O. B. ; Ferri, F. A. ; Rivera, V. A. G. ; Marega, E.

• Tipo de documento: Artigo Científico
• Fonte: SCIENTIFIC REPORTS; v. 12, n. 1, p. 8-pg., 2022-03-23.

Resumo

It is crucial to control the tuning and improve the emission of a quantum emitter at the nanoscale. We report multiple Fano resonances in metallic nanostructures on an Er3+-doped tellurite glass. Periodic nanoslits were fabricated with a focused gallium ion beam on a gold thin film deposited on the tellurite glass. Is proposed a coupling function with Fano line-shape form, and the asymmetric parameter q for each resonance wavelength in the 515 to 535 nm region was calculated. This asymmetric resonance effect is a consequence of the quantum interaction between the continuum state, generated in the nanostructure, and the Stark splits of the H-2(11/2) state. (AU)

• Processo FAPESP: 20/04835-3 - Controlando o estado de polarização da emissão de terras raras em vidros teluritos a partir de nano-antenas plasmônicas
• Beneficiário: Gaston Lozano Calderón
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 13/07276-1 - CEPOF - Centro de Pesquisa em Óptica e Fotônica
• Beneficiário: Vanderlei Salvador Bagnato
• Modalidade de apoio: Auxílio à Pesquisa - Centros de Pesquisa, Inovação e Difusão - CEPIDs