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. 2017 Sep 22;7:12186. doi: 10.1038/s41598-017-12413-4

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© The Author(s) 2017

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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FEA-based numerical evaluation of the scattering cross section of a cluster of two graphene-coated nanowires of radius R = 0.5 μm, core permittivity ε _d = 3.9, and graphene chemical potential μ = 0.5 eV, immersed in air. The SCS is normalized to the diameter of one nanowire, 2R. The nanowire dimer is oriented transversally (red solid line) and along (blue solid line) the propagation direction of the incident light. For comparison, we include the spectrum of Q _sca for a single nanoparticle (dashed green line).