4.6 Article

Resonant SPP modes supported by discrete metal nanoparticles on high-index substrates

Journal

OPTICS EXPRESS
Volume 19, Issue 6, Pages A146-A156

Publisher

OPTICAL SOC AMER
DOI: 10.1364/OE.19.00A146

Keywords

-

Categories

Funding

  1. Australian Research Council
  2. EU
  3. NWO
  4. GCEP

Ask authors/readers for more resources

We provide a new physical interpretation of scattering from plasmonic nanoparticles on high-index substrates. We demonstrate the excitation of different types of resonant modes on disk-shaped, Ag nanoparticles. At short wavelengths, the resonances are localised at the top of the particle, while at longer wavelengths they are localised at the Ag/substrate interface. We attribute the long wavelength resonances to geometric resonances of surface plasmon polaritons (SPPs) at the Ag/substrate interface. We show that particles that support resonant SPP modes have enhanced scattering cross-sections when placed directly on a high-index substrate; up to 7.5 times larger than that of a dipole scatterer with an equivalent free-space resonance. This has implications for designing scattering nanostructures for light trapping solar cells. (C) 2011 Optical Society of America

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.6
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

No Data Available
No Data Available