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Extinction measurements of metallic nanoparticles arrays as a way to explore the single nanoparticle plasmon resonances

Abstract : The optical characterization of a single metallic nanostructure has a strong interest in the scientific community owing to its localized surface plasmon resonances. For a single nano-object, the simplest and the accepted optical characterization technique is dark-field spectroscopy, even if there are many drawbacks and a certain complexity to operate it. We propose here using extinction spectroscopy of nanoparticles ensembles to characterize optically a single nanostructure. The scattering spectrum of a single gold nanocylinder and the extinction spectrum of a well-chosen array show similar results. We perform an experimental and numerical comparative study to draw parallels between both techniques.
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https://hal-utt.archives-ouvertes.fr/hal-02319304
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Submitted on : Thursday, October 17, 2019 - 6:27:46 PM
Last modification on : Tuesday, October 6, 2020 - 4:30:49 PM

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Artur Movsesyan, Anne-Laure Baudrion, Pierre-Michel Adam. Extinction measurements of metallic nanoparticles arrays as a way to explore the single nanoparticle plasmon resonances. Optics Express, Optical Society of America - OSA Publishing, 2018, 26 (5), pp.6439. ⟨10.1364/OE.26.006439⟩. ⟨hal-02319304⟩

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