Beam splitting and a hollow light cone from a metamaterial based on a metallic nanorod array

We report beam splitting in a metamaterial composed of a metallic nanorod array embedded in dielectric. By simulating distributions of energy flow in the metamaterial, we find that the beam splitting occurs for H-polarized incidence, which is conducive to producing a beam splitter. We also find that a hollow light cone can be formed for circularly polarized incidence, which has a potential application in manipulating atoms and molecules.