Berlin 2008 – scientific programme

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HL: Fachverband Halbleiterphysik

HL 36: Poster III

HL 36.28: Poster

Wednesday, February 27, 2008, 16:30–19:00, Poster D

Time-Domain Simulations using Discontinuous Galerkin methods — •Kai Stannigel¹, Michael König^1,3, Jens Niegemann^1,2,3, Lasha Tkeshlashvili^1,2,3, and Kurt Busch^1,2,3 — ¹Institut für Theoretische Festkörperphysik, Universität Karlsruhe — ²DFG Forschungszentrum Center for Functional Nanostructures (CFN), Universität Karlsruhe — ³Karlsruhe School of Optics & Photonics (KSOP), Universität Karlsruhe

The accurate numerical treatment of complex nano-photonic structures requires a flexible spatial discretization scheme. Standard finite elements are of limited use for time-domain calculations, since they usually require the inversion of large matrices in each time-step and are thus computationally expensive. This problem can be overcome by the use of Galerkin discontinuous elements. We demonstrate the superior accuracy and performance of this method by applying it to typical problems in the field of nano-photonics. The results are compared to standard methods such as FDTD.