Regensburg 2010 – wissenschaftliches Programm
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O: Fachverband Oberflächenphysik
O 59: Poster Session II (Nanostructures at surfaces: Dots, particles, clusters; Nanostructures at surfaces: arrays; Nanostructures at surfaces: Wires, tubes; Nanostructures at surfaces: Other; Plasmonics and nanooptics; Metal substrates: Epitaxy and growth; Metal substrates: Solid-liquid interfaces; Metal substrates: Adsoprtion of organic / bio molecules; Metal substrates: Adsoprtion of inorganic molecules; Metal substrates: Adsoprtion of O and/or H; Metal substrates: Clean surfaces; Density functional theory and beyond for real materials)
O 59.46: Poster
Mittwoch, 24. März 2010, 17:45–20:30, Poster B1
Modeling the Optical Response of Metallic Nanostructures in the Discontinuous Galerkin Time-Domain Method — •Christopher Prohm1, Michael König1,2, Jens Niegemann1,2, and Kurt Busch1,2 — 1Institut für Theoretische Festkörperphysik, Karlsruher Institut für Technologie — 2DFG Forschungszentrum Center for Functional Nanostructures (CFN), Karlsruher Institut für Technologie
The discontinuous Galerkin time-domain method (DGTD) combines the highly flexible spatial discretization of finite-element methods with the possibility to investigate nanophotonic systems in the time-domain. Here, we investigate the interaction of three-dimensional metallic nanostructures with an incoming light field. In particular, we discuss the linear modeling of the dielectric function of metals via a combination of Drude and Lorentz terms. Furthermore, we present some results on the nonlinear modeling of the metallic response by using a hydrodynamic model.