Controlling photon bunching and antibunching of two quantum emitters near a core-shell sphere

Autor(es)

Arruda, Tiago J. ; Bachelard, Romain ; Weiner, John ; Slama, Sebastian ; Courteille, Philippe W.

• Tipo de documento: Artigo Científico
• Fonte: PHYSICAL REVIEW A; v. 101, n. 2, p. 15-pg., 2020-02-18.

Resumo

The collective spontaneous emission of two point-dipole emitters near a plasmonic core-shell nanosphere is theoretically investigated. Based on the expansion of mode functions in vector spherical harmonics, we derive closed analytical expressions for both the cooperative decay rate and the dipole-dipole interaction strength associated with two point dipoles close to a sphere. Considering a plasmonic nanoshell containing a linearly amplifying medium inside the core, the second-order correlation function for the two emitters shows that it is possible to tune the photon emission, selecting either photon bunching or antibunching as a function of the polarization and position of the sphere. This result opens vistas to applications involving tunable single-photon sources in engineered artificial media. (AU)

• Processo FAPESP: 15/21194-3 - Interação entre átomos e metamateriais: efeito Purcell e teoria de meios efetivos
• Beneficiário: Tiago José Arruda
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 13/04162-5 - Desenvolvimento de sensores quânticos com átomos ultrafrios
• Beneficiário: Philippe Wilhelm Courteille
• Modalidade de apoio: Auxílio à Pesquisa - Temático
• Processo FAPESP: 18/15554-5 - Transporte e localização de luz em duas e três dimensões
• Beneficiário: Romain Pierre Marcel Bachelard
• Modalidade de apoio: Auxílio à Pesquisa - Jovens Pesquisadores - Fase 2