title: Localized Surface Plasmons Selectively Coupled to Resonant Light in Tubular Microcavities.
abstract: Vertical gold nanogaps are created on microtubular cavities to explore the coupling between resonant light supported by the microcavities and surface plasmons localized at the nanogaps. Selective coupling of optical axial modes and localized surface plasmons critically depends on the exact location of the gold nanogap on the microcavities, which is conveniently achieved by rolling up specially designed thin dielectric films into three-dimensional microtube cavities. The coupling phenomenon is explained by a modified quasipotential model based on perturbation theory. Our work reveals the coupling of surface plasmon resonances localized at the nanoscale to optical resonances confined in microtubular cavities at the microscale, implying a promising strategy for the investigation of light-matter interactions.
authors.affiliation: Institute for Integrative Nanosciences, IFW Dresden, Helmholtzstraße 20, 01069 Dresden, Germany.|Material Systems for Nanoelectronics, Technische Universität Chemnitz, Reichenhainer Straße 70, 09107 Chemnitz, Germany.
authors.forename: Yin
authors.initials: Y
authors.lastname: Yin
authors.affiliation: Institute for Integrative Nanosciences, IFW Dresden, Helmholtzstraße 20, 01069 Dresden, Germany.
authors.forename: Shilong
authors.initials: S
authors.lastname: Li
authors.affiliation: Institute for Integrative Nanosciences, IFW Dresden, Helmholtzstraße 20, 01069 Dresden, Germany.
authors.forename: Stefan
authors.initials: S
authors.lastname: Böttner
authors.affiliation: Institute for Metallic Materials, IFW Dresden, Helmholtzstraße 20, 01069 Dresden, Germany.
authors.forename: Feifei
authors.initials: F
authors.lastname: Yuan
authors.affiliation: Institute for Integrative Nanosciences, IFW Dresden, Helmholtzstraße 20, 01069 Dresden, Germany.
authors.forename: Silvia
authors.initials: S
authors.lastname: Giudicatti
authors.affiliation: Institute for Integrative Nanosciences, IFW Dresden, Helmholtzstraße 20, 01069 Dresden, Germany.
authors.forename: Ehsan
authors.initials: E
authors.lastname: Saei Ghareh Naz
authors.affiliation: Institute for Integrative Nanosciences, IFW Dresden, Helmholtzstraße 20, 01069 Dresden, Germany.
authors.forename: Libo
authors.initials: L
authors.lastname: Ma
authors.affiliation: Institute for Integrative Nanosciences, IFW Dresden, Helmholtzstraße 20, 01069 Dresden, Germany.|Material Systems for Nanoelectronics, Technische Universität Chemnitz, Reichenhainer Straße 70, 09107 Chemnitz, Germany.
authors.forename: Oliver G
authors.initials: OG
authors.lastname: Schmidt