Complex response and polariton-like dispersion splitting in periodic metal nanoparticle chains

2005/12/08 by A. F. Koenderink, A. Femius Koenderink, Albert Polman +1 · 5 citations
Engineering · Materials Science · Physics and Astronomy · #Condensed matter physics #Dispersion (optics) #Dispersion relation #Geometry #Gold and Silver Nanoparticles Synthesis and Applications #Line (geometry) #Materials science #Molecular physics #Nanoparticle #Nanotechnology #Optics #Photonic Crystals and Applications #Physics #Plasmonic and Surface Plasmon Research #Polariton #Transverse plane #Wavelength #cond-mat.other

paper · pdf · doi:10.1103/physrevb.74.033402

published as Phys. Rev. B 74, 033402:1-4 (2006) · 4 pages, 2 figures, color

arxiv created 2005/12/08 · openalex publication_date 2006/07/07 · arxiv updated 2012/08/21 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

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 for transverse modes to split in two anticrossing branches, as is 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 one 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.

Cited by

• Signature of a Fano Resonance in a Plasmonic Metamolecule’s Local Density of Optical States
• Higher-order topology in plasmonic Kagome lattices
• Experimental evidence for large dynamic effects on the plasmon dispersion of subwavelength metal nanoparticle waveguides
• Dirac plasmons in bipartite lattices of metallic nanoparticles
• Time-dependent transport of a localized surface plasmon through a linear array of metal nanoparticles: Precursor and normal mode contributions