Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/43423
Título: | Modeling the excitation of graphene plasmons in periodic grids of graphene ribbons: an analytical approach |
Autor(es): | Gonçalves, Paulo André Dias Dias, E. J. C. Bludov, Yuliy V. Peres, N. M. R. |
Palavras-chave: | Graphene Plasmons |
Data: | 25-Jul-2016 |
Editora: | American Physical Society |
Revista: | Physical Review B |
Citação: | Gonçalves, P. A. D., Dias, E. J. C., Bludov, Yu. V. and Peres, N. M. R. (2016). Modeling the excitation of graphene plasmons in periodic grids of graphene ribbons: An analytical approach. Phys. Rev. B 94, 195421. doi: 10.1103/PhysRevB.94.195421 |
Resumo(s): | We study electromagnetic scattering and subsequent plasmonic excitations in periodic grids of graphene ribbons. To address this problem, we develop an analytical method to describe the plasmon-assisted absorption of electromagnetic radiation by a periodic structure of graphene ribbons forming a diffraction grating for THz and mid-IR light. The major advantage of this method lies in its ability to accurately describe the excitation of graphene surface plasmons (GSPs) in one-dimensional (1D) graphene gratings without the use of both time-consuming, and computationally-demanding full-wave numerical simulations. We thus provide analytical expressions for the reflectance, transmittance and plasmon-enhanced absorbance spectra, which can be readily evaluated in any personal laptop with little-to-none programming. We also introduce a semi-analytical method to benchmark our previous results and further compare the theoretical data with spectra taken from experiments, to which we observe a very good agreement. These theoretical tools may therefore be applied to design new experiments and cutting-edge nanophotonic devices based on graphene plasmonics. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/43423 |
DOI: | 10.1103/PhysRevB.94.195421 |
ISSN: | 2469-9950 |
e-ISSN: | 2469-9969 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | CDF - CEP - Artigos/Papers (with refereeing) |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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GPs_G-grid_Analytic.pdf | 4,56 MB | Adobe PDF | Ver/Abrir |