Decay of dark and bright plasmonic modes in a metallic nanoparticle dimer

Abstract : We develop a general quantum theory of the coupled plasmonic modes resulting from the near-field interaction between localized surface plasmons in a heterogeneous metallic nanoparticle dimer. In particular, we provide analytical expressions for the frequencies and decay rates of the bright and dark plasmonic modes. We show that, for sufficiently small nanoparticles, the main decay channel for the dark plasmonic mode, which is weakly coupled to light and, hence, immune to radiation damping, is of nonradiative origin and corresponds to Landau damping, i.e., decay into electron-hole pairs.
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Physical Review B : Condensed matter and materials physics, American Physical Society, 2015, 91 (3), 〈10.1103/PhysRevB.91.035431〉
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https://hal.archives-ouvertes.fr/hal-01611294
Contributeur : Dietmar Weinmann <>
Soumis le : jeudi 5 octobre 2017 - 16:08:18
Dernière modification le : jeudi 15 mars 2018 - 01:35:08

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Adam Brandstetter-Kunc, Guillaume Weick, Dietmar Weinmann, Rodolfo A. Jalabert. Decay of dark and bright plasmonic modes in a metallic nanoparticle dimer. Physical Review B : Condensed matter and materials physics, American Physical Society, 2015, 91 (3), 〈10.1103/PhysRevB.91.035431〉. 〈hal-01611294〉

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