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Self-assembly of metallic nanoparticles into plasmonic rings

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Abstract

Metallic nanoparticles are self-assembled into plasmonic nanorings. The self-assembly is evaporation-induced and is driven using a template of dielectric microspheres. We obtain well-ordered arrays of metallic nanorings over large areas. The inner and outer diameters of the rings, as well as the pitch of the array, are fully controllable. The optical resonances supported by the plasmonic rings are then characterized using extinction spectroscopy. Our approach opens a simple and inexpensive road to create plasmonic structures that can find applications as metamaterials or substrates for enhanced spectroscopies.
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Dates and versions

hal-02527353 , version 1 (01-04-2020)

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  • HAL Id : hal-02527353 , version 1

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Thomas Lerond, Julien Proust, Davy Gérard, Jérôme Plain. Self-assembly of metallic nanoparticles into plasmonic rings. META'12, Apr 2012, Paris, France. ⟨hal-02527353⟩

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