• Medientyp: Sonstige Veröffentlichung; E-Book; Bericht
  • Titel: Conical diffraction by multilayer gratings: A recursive integral equations approach
  • Beteiligte: Schmidt, Gunther [VerfasserIn]
  • Erschienen: Weierstrass Institute for Applied Analysis and Stochastics publication server, 2011
  • Sprache: Englisch
  • DOI: https://doi.org/10.20347/WIAS.PREPRINT.1601
  • Schlagwörter: Diffraction -- periodic structure -- multilayer grating -- singular integral formulation -- recursive algorithm ; 45E05 ; 78M15 ; 78A45 ; 35J05 ; article
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  • Beschreibung: In this paper we consider an integral equation algorithm to study the scattering of plane waves by multilayer diffraction gratings under oblique incidence. The scattering problem is described by a system of Helmholtz equations with piecewise constant coefficients in $\R^2$ coupled by special transmission conditions at the interfaces between different layers. Boundary integral methods lead to a system of singular integral equations, containing at least two equations for each interface. To deal with an arbitrary number of material layers we present the extension of a recursive procedure developed by Maystre for normal incidence, which transforms the problem to a sequence of equations with $2 \times 2$ operator matrices on each interface. Necessary and sufficient conditions for the applicability of the algorithm are derived.