50/50 beam splitter using a one-dimensional metal photonic crystal with parabolalike dispersion

Abstract

The spatial dispersion properties of a one-dimensional metal photonic crystal have been analyzed and five types of dispersion curves have been shown at a normalized frequency less than 1. It is demonstrated that by exploiting a parabolalike dispersion behavior, a metal photonic crystal slab can be used to realize an exactly 50/50 beam splitter. (c) 2007 American Institute of Physics.