A dielectric lens placed on a metal-dielectric interface can be used for in-plane focusing of surface plasmon (SP) modes. Here, we have used vectorial derivation of Huygens-Fresnel principal to calculate the diffracted fields behind the lens...

In nanophotonics, dielectric lenses are used for in-plane focusing of surface plasmon modes, but there is no control over the diffracted fields and focal length of the lens after it has been fabricated. We introduce a conceptual dielectric lens...

In this paper, a device for coupling light into symmetric and asymmetric surface plasmon modes in a metallic thin film is presented. This device consists of a two-dimensional periodic array of nanoparticles located above a silver thin film...