Tunable plasmonic metasurface for perfect absorption

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Title: Tunable plasmonic metasurface for perfect absorption
Author(s): 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.
Publication Date: 31-Dec-2017
Date of Acceptance: 13-Jan-2017
DOI: 10.1051/epjam/2017001
ISSN: 2272-2394
Publisher: EDP Sciences
Journal / Book Title: EPJ Applied Metamaterials
Copyright Statement: This paper is embargoed until publication.
Sponsor/Funder: Engineering & Physical Science Research Council (EPSRC)
Funder's Grant Number: EP/L024926/1
Publication Status: Accepted
Embargo Date: publication subject to indefinite embargo
Appears in Collections:Physics
Experimental Solid State
Faculty of Natural Sciences

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