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 2H11 / 2 state.
|State||Published - Dec 2022|
Bibliographical noteFunding Information:
This research was supported by the São Paulo Research Foundation (FAPESP) under the grant 2013/07276-1 and 2020/04835-3, and Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) through the Centro de Pesquisas em Óptica e Fotônica (CePOF)—São Paulo—Brazil (process 310925/2017-7).
This research was supported by the S?o Paulo Research Foundation (FAPESP) under the grant 2013/07276-1 and 2020/04835-3, and Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico (CNPq) through the Centro de Pesquisas em ?ptica e Fot?nica (CePOF)?S?o Paulo?Brazil (process 310925/2017-7).
© 2022, The Author(s).