Propagation of optical excitations by dipolar interactions in metal nanoparticle chains
Propagation of optical excitations by dipolar interactions in metal nanoparticle chains
Dispersion relations for dipolar modes propagating along a chain of metal nanoparticles are calculated by solving the full Maxwell equations, including radiation damping. The nanoparticles are treated as point dipoles, which means the results are valid only for a/d <= 1/3, where a is the particle radius and d the …