Solutions of Maxwell's equations in presence of lamellar gratings including infinitely conducting metal.
J Opt Soc Am A Opt Image Sci Vis
; 25(12): 3099-110, 2008 Dec.
Article
en En
| MEDLINE
| ID: mdl-19037402
Modal methods often used to model lamellar gratings that include infinitely or highly conducting metallic parts encounter numerical instabilities in some situations. In this paper, the origin of these numerical instabilities is determined, and then a stable algorithm solving this problem is proposed. In order to complete this analysis, the different geometries that can be handled without numerical instabilities are clearly defined. Numerical tests of the exact modal method implemented with the proposed solution are also presented. A test of convergence shows the efficiency of the method while the comparison with the fictitious sources method shows its accuracy.
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01-internacional
Base de datos:
MEDLINE
Idioma:
En
Revista:
J Opt Soc Am A Opt Image Sci Vis
Asunto de la revista:
OFTALMOLOGIA
Año:
2008
Tipo del documento:
Article
País de afiliación:
Francia
Pais de publicación:
Estados Unidos