Highly improved convergence approach incorporating edge conditions for scattering analysis of graphene gratings
| Autor: | Ruey-Bing Hwang |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Plane wave lcsh:Medicine Physics::Optics Basis function 02 engineering and technology STRIPS Grating 01 natural sciences Article law.invention Gibbs phenomenon symbols.namesake 020210 optoelectronics & photonics Optics law 0103 physical sciences 0202 electrical engineering electronic engineering information engineering lcsh:Science 010306 general physics Multidisciplinary Graphene Scattering business.industry lcsh:R Computational science Optical properties and devices Rate of convergence symbols lcsh:Q business |
| Zdroj: | Scientific Reports Scientific Reports, Vol 10, Iss 1, Pp 1-10 (2020) |
| ISSN: | 2045-2322 |
| Popis: | This research developed an effective and efficient approach for improving the slow convergence in the scattering analysis of a one-dimensional graphene grating, made of a periodic array of parallel graphene strips, illuminated by a TM-polarized plane wave. Specifically, the electric fields over the graphene strips and slit regions in a unit cell are individually expressed as an expansion of local basis functions inherently satisfying edge conditions. Interestingly, convergence rate is highly improved compared to the customary and modified Fourier modal method. Additionally, with the aid of local basis functions, the Gibbs phenomenon occurring at both edges of graphene strip can be removed. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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