Figure 5.
Modeling the optical properties of TL pyramids. A) Plasmon hybridization scheme indicating coupling of the same L modes from exterior and interior particle surfaces. B) Scattering spectra of experiment and theory for θ = 35° TL pyramids. The experimental λ1- and λ2-resonances can be associated with the calculated λ4b bonding and λ3a antibonding plasmonic modes, respectively. C) Vector plots of the induced polarizations for a pyramidal shell nanoparticle (d = 350 nm, tapered shell thickness). The positive and negative charge distributions are highlighted for clarity.