arXiv 1503.040942015-03-13physics.opticscond-mat.mtrl-sci

Tunable deep-subwavelength superscattering using graphene monolayers

R. J. Li, X. Lin, S. S. Lin, X. Liu, H. S. Chen

备注：: This paper has been accepted by Optics Letter
发表信息：: Optics Letters 40, 1651 (2015)
DOI：: 10.1364/OL.40.001651

英文摘要：

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.

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