Decay of dark and bright plasmonic modes in a metallic nanoparticle dimer
arXiv:1407.6569 · doi:10.1103/PhysRevB.91.035431
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.
9 pages, 3 figures; published version
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Cited by in corpus (15)
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- Nonradiative limitations to plasmon propagation in chains of metallic nanoparticles
- Plasmon polaritons in cubic lattices of spherical metallic nanoparticles
- Retardation effects on the dispersion and propagation of plasmons in metallic nanoparticle chains
- Radiative frequency shifts in nanoplasmonic dimers
- Quality factor of plasmonic monopartite and bipartite surface lattice resonances
- Plasmonic modes in cylindrical nanoparticles and dimers
- Plasmons in two-dimensional lattices of near-field coupled nanoparticles
- Dirac plasmons in bipartite lattices of metallic nanoparticles
- Quantum theory of plasmon polaritons in chains of metallic nanoparticles: From near- to far-field coupling regime
- Extreme renormalisations of dimer eigenmodes by strong light-matter coupling
- Spontaneous orbital magnetization of mesoscopic dipole dimers