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Integration of a single photon source on a planar dielectric waveguide

Abstract : The development of integrated optical devices in areas such as quantum information and molecular sensing is currently directed towards the integration of nanosources (NS) into systems on a chip with low propagation losses. This thesis shows a contribution on the design, fabrication, and characterization of photonic-plasmonic structures towards the integration of a NS on optical chips across the visible spectrum. We pursue the efficient excitation and collection of the fluorescence emission of a NS by making use of the interaction between an electromagnetic field concentrator (gold nanoprism) and an integrated optics structure formed by a high-index layer of titanium dioxide (TiO2) and a low-contrast index ion exchanged waveguide on glass (IEW). The coupling mode allows an efficient transfer of the energy between a weakly confined mode in the IEW and a plasmonic mode confined in an effective volume of few cubic nanometers. This confined mode interacts with a NS enhancing its florescence emission through Purcell factor effect. Using the reciprocity theorem of electromagnetism, we studied the reciprocal case where the light emitted by the NS can be collected into the photonic modes of the IEW.The characterization was performed in the far and in the near field with the use of a scanning near-field optical microscopy (SNOM). We proposed a SNOM configuration that allows us to imitate the interaction of a NS and guided systems, mapping the local density of guided modes (LDOM)
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  • HAL Id : tel-02418314, version 1

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Josslyn Beltran Madrigal. Integration of a single photon source on a planar dielectric waveguide. Optics / Photonic. Université de Technologie de Troyes, 2017. English. ⟨NNT : 2017TROY0007⟩. ⟨tel-02418314⟩

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