title: Large molecular fluorescence enhancement by a nanoaperture with plasmonic corrugations.
abstract: We investigate the influence of circular corrugations surrounding a central nanoaperture to further enhance the fluorescence count rate per emitter and control its emission directionality. Adding a single corrugation already allows to significantly increase the fluorescence signal as compared to a bare nanoaperture. A complete fluorescence characterization quantifies the excitation and emission gains contributing to the fluorescence enhancement process as the number of corrugations is increased.
authors: Institut Fresnel, CNRS, Aix-Marseille University, Ecole Centrale Marseille, Marseille, France.
authors: Heykel
authors: H
authors: Aouani
authors: Oussama
authors: O
authors: Mahboub
authors: Eloïse
authors: E
authors: Devaux
authors: Hervé
authors: H
authors: Rigneault
authors: Thomas W
authors: TW
authors: Ebbesen
authors: Jérôme
authors: J
authors: Wenger
mesh_terms: D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D057054:Molecular Imaging / Q000295:instrumentation*; D036103:Nanotechnology / Q000295:instrumentation*; D012031:Refractometry / Q000295:instrumentation*; D013050:Spectrometry, Fluorescence / Q000295:instrumentation*; D020349:Surface Plasmon Resonance / Q000295:instrumentation*