Tunable plasmonic metasurface for perfect absorption

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Title: Tunable plasmonic metasurface for perfect absorption
Authors: Arroyo-Huidobro, P
Maier, SA
Item Type: Journal Article
Abstract: Tunable metasurfaces, whose functionality can be dynamically modified, open up the possibil- ity of ultra-compact photonic components with reconfigurable applications. Here we consider a graphene monolayer subject to a spatially periodic gate bias, which, thank to surface plasmons in the graphene, acts as a tunable and extremely compact metasurface for terahertz radiation. After characterizing its functionality, we show that it serves as the basic building block of an ultrathin complete absorber. In this subwavelength-thickness device, transmission and reflection channels are blocked and electromagnetic energy is completely absorbed by the metasurface building blocks. The proposed structure can be used as a modulator, and its frequency of operation can be changed by scaling its size or adjusting the doping level.
Issue Date: 17-Feb-2017
Date of Acceptance: 13-Jan-2017
ISSN: 2272-2394
Publisher: EDP Sciences
Journal / Book Title: EPJ Applied Metamaterials
Volume: 4
Copyright Statement: © P.A. Huidobro et al., published by EDP Sciences, 2017. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Sponsor/Funder: The Leverhulme Trust
Gordon and Betty Moore Foundation
Engineering & Physical Science Research Council (EPSRC)
Funder's Grant Number: F/07 058/BK
Publication Status: Published
Article Number: 6
Appears in Collections:Condensed Matter Theory
Experimental Solid State
Faculty of Natural Sciences

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