%0 Journal Article %T Surface plasmons on a doped graphene sheet with periodically modulated conductivity %+ Laboratoire Charles Coulomb (L2C) %A Ben Rhouma, M. %A Oueslati, M. %A Guizal, Brahim %< avec comité de lecture %Z L2C:16-285 %@ 0749-6036 %J Superlattices and Microstructures %I Elsevier %V 96 %P 212-219 %8 2016-05-20 %D 2016 %R 10.1016/j.spmi.2016.05.021 %K Graphene %K Surface plasmon polariton %K Diffraction gratings %Z Physics [physics]/Mathematical Physics [math-ph]Journal articles %X We propose a model taking into account the periodic spatial modulation of a doped gra- phene 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. %G English %L hal-01540210 %U https://hal.science/hal-01540210 %~ CNRS %~ L2C %~ TDS-MACS %~ MIPS %~ UNIV-MONTPELLIER %~ UM-2015-2021