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Conference Papers Year : 2012

Plasmonic axicon micro-lenses for chemical sensing

Abstract

We report on the fabrication of plasmonic hybrid sensors made of a micro-axicon dielectric lens and a single metallic nanoparticle. The dielectric lens produces a Bessel-like beam of light at its apex under plane wave excitation confining light in a narrow and intense beam with a low divergence. This Bessel-like beam can be used to optimize efficiently the excitation of a plasmonic nano-object and the collection of its far-field collected signal. This hybrid structure using the optical properties of a single metallic nanoparticle can act as a highly sensitive nanosensor.
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Dates and versions

hal-02442541 , version 1 (16-01-2020)

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Julien Proust, Jérôme Martin, Davy Gérard, Jean-Louis Bijeon, Jerome Plain. Plasmonic axicon micro-lenses for chemical sensing. CLEO: Applications and Technology, May 2012, San Jose, United States. pp.JTh2A.111, ⟨10.1364/CLEO_AT.2012.JTh2A.111⟩. ⟨hal-02442541⟩

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