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Center for Nonlinear Studies |
Linear chains or other periodic and nonperiodic arrays of noncontacting metal nanoparticles as well as nanowires exhibit electromagnetic transport at optical frequencies. The transport mechanism is the dynamic dipole-dipole coupling between plasmon resonances on the nanoparticles. In this talk, I will discuss the dispersion and radiative width of plasmon polaritons in metal nanostructures obtained from a self-consistent theory. Results for a number of basic structures, including chains and rings, will be presented. Although such structures are quite lossy, possible ways to manage the losses will be discussed.