Coupling and guided propagation along parallel chains of plasmonic nanoparticles
Coupling and guided propagation along parallel chains of plasmonic nanoparticles
We derive a dynamic closed-form dispersion relation for the analysis of the entire spectrum of guided wave propagation along coupled parallel linear arrays of plasmonic nanoparticles, operating as optical 'two-line' waveguides. Compared to linear arrays of nanoparticles, our results suggest that these waveguides may support more confined beams with comparable …