Imperial College London
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DrPalomaArroyo Huidobro

Faculty of Natural Sciences, Department of Physics

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Contact

 

+44 (0)20 7594 6155p.arroyo-huidobro

 
 
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Location

 

816Blackett LaboratorySouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Huidobro:2016:10.1021/acsnano.6b01944,
author = {Huidobro, PA and Kraft, M and Maier, SA and Pendry, JB},
doi = {10.1021/acsnano.6b01944},
journal = {ACS Nano},
pages = {5499--5506},
title = {Graphene as a Tunable Anisotropic or IsotropicPlasmonic Metasurface},
url = {http://dx.doi.org/10.1021/acsnano.6b01944},
volume = {10},
year = {2016}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - We demonstrate a tunable plasmonic metasurface by considering a graphene sheetsubject to a periodically patterned doping level. The unique optical properties ofgraphene result in electrically tunable plasmons that allow for extreme confinementof electromagnetic energy in the technologically significant regime of THz frequencies.Here we add an extra degree of freedom by using graphene as a metasurface, proposingto dope it with an electrical gate patterned in the micron or sub-micron scale. Byextracting the effective conductivity of the sheet we characterize metasurfaces periodicallymodulated along one or two directions. In the first case, and making use of theanalytical insight provided by transformation optics, we show an efficient control ofTHz radiation for one polarization. In the second case, we demonstrate a metasurfacewith an isotropic response that is independent of wave polarization and orientation.
AU  - Huidobro,PA
AU  - Kraft,M
AU  - Maier,SA
AU  - Pendry,JB
DO  - 10.1021/acsnano.6b01944
EP  - 5506
PY  - 2016///
SN  - 1936-086X
SP  - 5499
TI  - Graphene as a Tunable Anisotropic or IsotropicPlasmonic Metasurface
T2  - ACS Nano
UR  - http://dx.doi.org/10.1021/acsnano.6b01944
UR  - http://hdl.handle.net/10044/1/31105
VL  - 10
ER  -
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