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Tunable plasmonic metasurface for perfect absorption
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Title: | Tunable plasmonic metasurface for perfect absorption |
Authors: | Arroyo-Huidobro, P Maier, SA Pendry |
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 |
URI: | http://hdl.handle.net/10044/1/43984 |
DOI: | https://dx.doi.org/10.1051/epjam/2017001 |
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 (http://creativecommons.org/licenses/by/4.0), 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 BB00099823 EP/L024926/1 |
Publication Status: | Published |
Article Number: | 6 |
Appears in Collections: | Condensed Matter Theory Physics Experimental Solid State Faculty of Natural Sciences |