Abstract
We show that guiding of optical signals in chains of metal nanoparticles is subject to a surprisingly complex dispersion relation. Retardation causes the dispersion relation to split in two anticrossing branches, as common for polaritons. While huge radiation losses occur above the light line, just below the light line the micron-sized loss lengths are much longer than expected. The anticrossing allows to create highly localized energy distributions in finite arrays that can be tuned via the illumination wavelength. Our results apply to all linear chains of coupled resonant scatterers.
Keywords
PolaritonDispersion relationDispersion (optics)WavelengthTransverse planeCondensed matter physicsLine (geometry)NanoparticleMaterials sciencePhysicsOpticsMolecular physicsNanotechnologyGeometry
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Publication Info
- Year
- 2006
- Type
- article
- Volume
- 74
- Issue
- 3
- Citations
- 206
- Access
- Closed
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Cite This
A. Femius Koenderink,
Albert Polman
(2006).
Complex response and polariton-like dispersion splitting in periodic metal nanoparticle chains.
Physical Review B
, 74
(3)
.
https://doi.org/10.1103/physrevb.74.033402
Identifiers
- DOI
- 10.1103/physrevb.74.033402