Abstract:

We investigate the optical properties of a plasmonic chain waveguide consisting of a linear array of elongated nanoshell particles (i.e. nanorice), where the interaction is based on low and high order mode coupling. Research shows that the propagation length can be improved by this kind of nanorice structures when compared to solid metallic structures with elongated (elliptical) shapes. Furthermore, at high order resonances, the propagation, as well as the energy transfer can be enhanced compared to the propagation at low order mode interactions. These findings allow the design of highly efficient waveguides for guiding light on the nanoscale.