Observation of Brewster’s effect for transverse-electric electromagnetic waves in metamaterials: Experiment and theory

Abstract

We have experimentally realized Brewster's effect for transverse-electric waves with metamaterials. In dielectric media, Brewster's no-reflection effect arises only for transverse-magnetic waves. However, it has been theoretically predicted that Brewster's effect arises for TE waves under the condition that the relative permeability ${\ensuremath{\mu}}_{\mathrm{r}}$ is not equal to unity. We have designed an array of split-ring resonators as a metamaterial with ${\ensuremath{\mu}}_{\mathrm{r}}\ensuremath{\ne}1$ using a finite-difference time-domain method. The reflection measurements were carried out in a $3\text{\ensuremath{-}}\mathrm{GHz}$ region and the disappearance of reflected waves at a particular incident angle was confirmed.