Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/61492
Título: | Propagation of surface plasmons on plasmonic Bragg gratings |
Autor(es): | Chaves, A. J. Peres, N. M. R. |
Palavras-chave: | Plasmons Graphene Bragg Grating |
Data: | 2019 |
Editora: | AIP Publishing |
Revista: | Journal of Applied Physics |
Citação: | Chaves, A. J., & Peres, N. M. R. (2019). Propagation of surface plasmons on plasmonic Bragg gratings. Journal of Applied Physics, 125(24), 243106. |
Resumo(s): | We use coupled-mode theory to describe the scattering of a surface-plasmon polariton (SPP) from a square wave grating (Bragg grating) of finite extension written on the surface of either a metal-dielectric interface or a dielectric-dielectric interface covered with a patterned graphene sheet. We find analytical solutions for the reflectance and transmittance of SPP's when only two modes (forward- and back-scattered) are considered. We show that in both cases the reflectance spectrum presents stop-bands where the SPP is completely back-scattered, if the grating is not too shallow. In addition, the reflectance coefficient shows Fabry-P\'erot oscillations when the frequency of the SPP is out of the stop-band region. For a single dielectric well, we show that there are frequencies of transmission equal to 1. We also provide simple analytical expression for the different quantities in the electrostatic limit. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/61492 |
DOI: | 10.1063/1.5099060 |
ISSN: | 0021-8979 |
e-ISSN: | 1089-7550 |
Versão da editora: | https://aip.scitation.org/doi/full/10.1063/1.5099060 |
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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1812.04537.pdf | 1,53 MB | Adobe PDF | Ver/Abrir |
Este trabalho está licenciado sob uma Licença Creative Commons