Journal
SUPERLATTICES AND MICROSTRUCTURES
Volume 96, Issue -, Pages 212-219Publisher
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.spmi.2016.05.021
Keywords
Graphene; Surface plasmon polariton; Diffraction gratings
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We propose a model taking into account the periodic spatial modulation of a doped graphene sheet conductivity when it is placed in the vicinity of a dielectric grating. We then compute the absorption and study the excitation of surface plasmons on such a structure. We show that it is possible to excite surface modes leading to very high absorption. Our findings could be of interest in the design of graphene-based plasmonic devices and sensors working in the infra-red and the terahertz regions of the electromagnetic spectrum. (C) 2016 Elsevier Ltd. All rights reserved.
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