Abstract
The plasmonic resonance absorption properties of a periodic graphene nanoribbon array are studied in this paper. We discuss the effect of the asymmetricity of the dielectric environment on the plasmonic resonance of the graphene nanoribbon array in order to know which combination of the two dielectric materials surrounding the graphene is most advantageous. The results show that, regardless of the graphene in symmetric and asymmetrical environments, the absorption peak of plasmon resonance shifts to longer wavelengths (shifts red) with the increase of the changing permittivity (permittivities) on one or both sides. This absorption characteristic of the graphene periodic array to external electromagnetic waves originates from the wavelength dependence of the intrinsic graphene plasmons on the environmental medium.
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