Narrow bandwidth resonances in periodic plasmonic structures

Abstract

Narrow bandwidth resonances (NBR) in the region of Wood anomaly in symmetric and asymmetric refractive index environment for different system configurations are studied. Coupled plasmonic nanonanoresonators system and its optical response is considered numerically and using simple analytical model. Crucial role of the substrate influence on the NBR for various configurations is thoroughly investigated. Possible prospective designs for particular experimental realization are suggested and discussed.