Regensburg 2007 – scientific programme

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HL: Fachverband Halbleiterphysik

HL 46: Poster 2

HL 46.74: Poster

Thursday, March 29, 2007, 15:00–17:30, Poster A

Simulation of Metallic Nanostructures using Krylov-subspace methods — •Michael König, Jens Niegemann, Lasha Tkeshelashvili, and Kurt Busch — Institut für Theoretische Festkörperphysik, 76128 Karlsruhe, Germany

The Krylov-subspace method provides a stable, highly accurate scheme for the numerical solution of Maxwell's equations. We present an extension of the basic algorithm [1] to include perfectly matched layers and Drude-Lorentz dispersion relations, which are implemented through auxiliary differential equations. This approach allows an accurate and efficient simulation of metallic nanostructures in open, three-dimensional systems. Specifically, we compare numerical calculations for certain metallic model systems with experimental results. In particular, the accuracy and efficiency of our approach allows to investigate local field enhancement effects in metallic nanostructures.

[1] J. Niegemann, L. Tkeshelashvili, and K. Busch, Higher-order time-domain simulations of Maxwell's equations using Krylov-subspace methods, J. Comput. Theor. Nanosci. (in press)