All-angle zero reflection at metamaterial surfaces

TL;DR

This paper demonstrates that by properly terminating a hyperbolic metamaterial surface, zero reflection can be achieved at all incident angles, with theoretical analysis and numerical simulations supporting the findings.

Contribution

It introduces a method to achieve all-angle zero reflection on hyperbolic metamaterial surfaces through specific surface termination.

Findings

Zero reflection occurs at all incident angles for properly terminated surfaces.

Surface termination aligned with the hyperbolic dispersion asymptote is crucial.

Numerical simulations confirm the theoretical predictions.

Abstract

The authors study theoretically reflection on the surface of a metamaterial with a hyperbolic dispersion. It is found that reflection is strongly dependent on how the surface is terminated with respect to the asymptote of the hyperbolic dispersion. For a surface terminated normally to the asymptote, zero reflection occurs for all incident angles. It is exemplified by a metamaterial made of a periodic metal-dielectric layered structure with its surface properly cut through numerical simulations.