Plasmon-Enhanced Terahertz Photodetection in Graphene.
Nano Lett
; 15(7): 4295-302, 2015 Jul 08.
Article
em En
| MEDLINE
| ID: mdl-25871698
ABSTRACT
We report a large area terahertz detector utilizing a tunable plasmonic resonance in subwavelength graphene microribbons on SiC(0001) to increase the absorption efficiency. By tailoring the orientation of the graphene ribbons with respect to an array of subwavelength bimetallic electrodes, we achieve a condition in which the plasmonic mode can be efficiently excited by an incident wave polarized perpendicular to the electrode array, while the resulting photothermal voltage can be observed between the outermost electrodes.
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01-internacional
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MEDLINE
Idioma:
En
Revista:
Nano Lett
Ano de publicação:
2015
Tipo de documento:
Article