Wang, Mengyu ; Engström, Christian ; Schmidt, Kersten ; Hafner, Christian (2011)
On high-order FEM applied to canonical scattering problems in plasmonics.
In: J. Comput. Theor. Nanosci., 8 (8)
doi: 10.1166/jctn.2011.1851
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
In this paper a high-order finite element method with curvilinear elements is proposed for the simulation of plasmonic structures. Most finite element packages use low order basis functions and non-curved elements, which is very costly for demanding problems such as the simulation of nanoantennas. To enhance the performance of finite elements, we use curvilinear quadrilateral elements to calculate the near-field from an impinging plane wave with second order absorbing boundary conditions. The magnetic field amplitude on the surface of one object is compared with a computation based on a multiple multipole expansion. Moreover, the convergence behavior of p-FEM with absorbing boundary conditions motivate an adaptive strategy of polynomial degree enhancement and enlargement of the domain.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2011 |
| Autor(en): | Wang, Mengyu ; Engström, Christian ; Schmidt, Kersten ; Hafner, Christian |
| Art des Eintrags: | Bibliographie |
| Titel: | On high-order FEM applied to canonical scattering problems in plasmonics |
| Sprache: | Englisch |
| Publikationsjahr: | 1 August 2011 |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | J. Comput. Theor. Nanosci. |
| Jahrgang/Volume einer Zeitschrift: | 8 |
| (Heft-)Nummer: | 8 |
| DOI: | 10.1166/jctn.2011.1851 |
| Kurzbeschreibung (Abstract): | In this paper a high-order finite element method with curvilinear elements is proposed for the simulation of plasmonic structures. Most finite element packages use low order basis functions and non-curved elements, which is very costly for demanding problems such as the simulation of nanoantennas. To enhance the performance of finite elements, we use curvilinear quadrilateral elements to calculate the near-field from an impinging plane wave with second order absorbing boundary conditions. The magnetic field amplitude on the surface of one object is compared with a computation based on a multiple multipole expansion. Moreover, the convergence behavior of p-FEM with absorbing boundary conditions motivate an adaptive strategy of polynomial degree enhancement and enlargement of the domain. |
| Fachbereich(e)/-gebiet(e): | 04 Fachbereich Mathematik 04 Fachbereich Mathematik > Numerik und wissenschaftliches Rechnen |
| Hinterlegungsdatum: | 19 Nov 2018 21:41 |
| Letzte Änderung: | 19 Nov 2018 21:41 |
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