Berlin 2012 – wissenschaftliches Programm
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O: Fachverband Oberflächenphysik
O 85: Plasmonics and nanooptics V
O 85.4: Vortrag
Freitag, 30. März 2012, 11:15–11:30, MA 005
Simulation of Plasmonic Nanostructures using the Discontinuous Galerkin Time-Domain Method on Graphics Processing Units — •Richard Diehl1, Jens Niegemann2, and Kurt Busch3 — 1Institut für Theoretische Festkörperphysik and DFG-Center for Functional Nanostructures (CFN), Karlsruhe Institute of Technology (KIT), Wolfgang-Gaede-Straße 1, 76131 Karlsruhe, Germany — 2IFH - Lab for Electromagnetic Fields and Microwave Electronics ETH Zürich, Gloriastrasse 35, 8092 Zürich, Switzerland — 3Humboldt-Universität zu Berlin, Institut für Physik, AG Theoretische Optik, Newtonstr. 15, 12489 Berlin, and Max-Born-Institut, Max–Born–Str. 2A, 12489 Berlin, Germany
The discontinuous Galerkin time-domain (DGTD) method is a powerful method to explore the electromagnetic properties of nano-scale plasmonic and dielectric systems. Here, we present the method’s advantages and disadvantages when implemented to run on graphic processing units (GPUs). The GPU’s superior performance is demonstrated for a realistic split-ring resonator on membrane setup which is characterized by both, optical spectroscopy and electron energy loss spectroscopy. Compared to modern CPU hardware, GPU-based DGTD yields up to two orders of magnitude decreased computational time.