  In this Letter, we theoretically propose for the first time that graphene
monolayers can be used for superscatterer designs. We show that the scattering
cross section of the bare deep-subwavelength dielectric cylinder is markedly
enhanced by six orders of magnitude due to the excitation of the first-order
resonance of graphene plamons. By utilizing the tunability of the plasmonic
resonance through tuning graphene's chemical potential, the graphene
superscatterer works in a wide range of frequencies from several terahertz to
tens of terahertz.
