Graphene Reflectarray Metasurface for Terahertz Beam Steering and Phase Modulation
Applied Physics
2018-06-12 v2 Materials Science
Optics
Abstract
We report a THz reflectarray metasurface which uses graphene as active element to achieve beam steering, shaping and broadband phase modulation. This is based on the creation of a voltage controlled reconfigurable phase hologram, which can impart different reflection angles and phases to an incident beam, replacing bulky and fragile rotating mirrors used for terahertz imaging. This can also find applications in other regions of the electromagnetic spectrum, paving the way to versatile optical devices including light radars, adaptive optics, electro-optical modulators and screens.
Cite
@article{arxiv.1806.02202,
title = {Graphene Reflectarray Metasurface for Terahertz Beam Steering and Phase Modulation},
author = {Michele Tamagnone and Santiago Capdevila and Antonio Lombardo and Jingbo Wu and Alba Centeno and Amaia Zurutuza and Adrian M. Ionescu and Andrea C. Ferrari and Juan R. Mosig},
journal= {arXiv preprint arXiv:1806.02202},
year = {2018}
}
Comments
16 pages, 10 figures