Methods and apparatus for determining electromagnetic scattering properties and structural parameters of periodic structures

R. Dirks (Uitvinder), I.D. Setija (Uitvinder), M.G.M.M. Kraaij, van (Uitvinder), M.C. Beurden, van (Uitvinder)

Onderzoeksoutput: OctrooiOctrooi-publicatie

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Samenvatting

Numerical calculation of electromagnetic scattering properties and structural parameters of periodic structures is disclosed. A reflection coefficient has a representation as a bilinear or sesquilinear form. Computations of reflection coefficients and their derivatives for a single outgoing direction can benefit from an adjoint-state variable. Because the linear operator is identical for all angles of incidence that contribute to the same outgoing wave direction, there exists a single adjoint-state variable that generates all reflection coefficients from all incident waves that contribute to the outgoing wave. This adjoint-state variable can be obtained by numerically solving a single linear system, whereas one otherwise would need to solve a number of linear systems equal to the number of angles of incidence.
Originele taal-2Engels
OctrooinummerUS8645109 (B2)
Prioriteitsdatum29/11/10
StatusGepubliceerd - 4 feb 2014

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