Free Space Beam Shaping Using phase-change Reconfigurable metasurfaces

Abstract

Metasurfaces are planar structures that enable us to manipulate electromagnetic wavefronts by using subwavelength elements. Here, we propose a new tunable metasurface based on phase change materials and graphene heaters to operate in the near-IR regime. In the proposed structure, by incorporating electrical heaters, the optical properties of the phase change material layer and, consequently, the metasurface response can be adjusted. Finally, to investigate the potential capability of the proposed metasurface as a free space beam shaper, its beam steering capability is investigated.

Publication
The 3rd West Asian Symposium on Optical and Millimeter-wave Wireless Communications
Omid Abed
Omid Abed
Electrical Engineer