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Proceedings Paper

B-CALM: an open-source GPU-based 3D-FDTD with multi-pole dispersion for plasmonics
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Paper Abstract

Numerical calculations with nite-dierence time-domain (FDTD) on metallic nanostructures in a broad optical spectrum require an accurate approximation of the permittivity of dispersive materials. In this paper, we present the algorithms behind B-CALM (Belgium-California Light Machine), an open-source 3D-FDTD solver operating on Graphical Processing Units (GPUs) with multi-pole dispersion models. Our modied architecture shows a reduction in computing times for multi-pole dispersion models. We benchmark B-CALM by computing the absorption eciency of a metallic nanosphere on a broad spectral range with a six-poles Drude-Lorentz model and compare it with Mie theory.

Paper Details

Date Published: 4 May 2012
PDF: 6 pages
Proc. SPIE 8429, Optical Modelling and Design II, 842910 (4 May 2012); doi: 10.1117/12.922393
Show Author Affiliations
Pierre Wahl, Vrije Univ. Brussel (Belgium)
Stanford Univ. (United States)
Dany-Sebastien Ly-Gagnon, Stanford Univ. (United States)
Christof Debaes, Vrije Univ. Brussel (Belgium)
David A. B. Miller, Stanford Univ. (United States)
Hugo Thienpont, Vrije Univ. Brussel (Belgium)

Published in SPIE Proceedings Vol. 8429:
Optical Modelling and Design II
Frank Wyrowski; John T. Sheridan; Jani Tervo; Youri Meuret, Editor(s)

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