A T-matrix method coupled with Trefftz Discontinuous Galerkin approximates scattering by periodic layered gratings with linear computational cost in the number of layers.
Metamaterial applications of Tmatsolver, an easy-to-use software for simulating multiple wave scattering in two dimensions
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Trefftz DG Approximation of the T-Matrix for Scattering by Periodic Layered Structures
A T-matrix method coupled with Trefftz Discontinuous Galerkin approximates scattering by periodic layered gratings with linear computational cost in the number of layers.