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

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

doi:10.1038/s41598-022-08858-x

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

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

Research output: Contribution to journal › Article › peer-review

Abstract

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 ²H_{11 / 2} state.

Original language	English
Article number	5015
Journal	Scientific Reports
Volume	12
Issue number	1
DOIs	https://doi.org/10.1038/s41598-022-08858-x
State	Published - Dec 2022

Bibliographical note

Funding 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).

Funding Information:
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).

Publisher Copyright:
© 2022, The Author(s).

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abstract = "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.",

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AU - Rivera, V. A.G.

AU - Marega, E.

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AB - 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.

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

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