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Graphene Reflectarray Metasurface for Terahertz Beam Steering and Phase Modulation

Accepted version
Peer-reviewed

Type

Article

Change log

Authors

Tamagnone, Michele 
Capdevila, Santiago 
Wu, Jingbo 
Centeno, Alba 

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.

Description

Keywords

physics.app-ph, physics.app-ph, cond-mat.mtrl-sci, physics.optics

Journal Title

Condensed Matter Physics

Conference Name

Journal ISSN

1607-324X

Volume Title

Publisher

Institute for Condensed Matter Physics

Publisher DOI

Publisher URL

Sponsorship
Engineering and Physical Sciences Research Council (EP/G042357/1)
Royal Society (TG102524)
Engineering and Physical Sciences Research Council (EP/K01711X/1)
Engineering and Physical Sciences Research Council (EP/K017144/1)
European Commission (284558)
European Commission (309980)
European Commission (604391)
Engineering and Physical Sciences Research Council (EP/L016087/1)
European Commission Horizon 2020 (H2020) Future and Emerging Technologies (FET) (696656)
EPSRC (via University of Manchester) (R119256)
Royal Society of Chemistry (unknown)
The Royal Society (wm090070)
European Research Council (319277)