B-CALM: An open-source GPU-based 3D-FDTD with multi-pole dispersion for plasmonics
Brussels Photonics Team, Applied Physics and Photonics Department, Vrije Univ. Brussels, Brussels, Belgium
11th International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD), 2011
@inproceedings{wahl2011b,
title={B-CALM: An open-source GPU-based 3D-FDTD with multipole dispersion for plasmonics},
author={Wahl, P. and Ly-Gagnon, D.S. and Debaes, C. and Miller, D.A.B. and Thienpont, H.},
booktitle={Numerical Simulation of Optoelectronic Devices (NUSOD), 2011 11th International Conference on},
pages={11–12},
year={2011},
organization={IEEE}
}
Numerical calculations with finite-difference time-domain (FDTD) on metallic nanostructures in a broad optical spectrum require an accurate approximation of the permittivity of dispersive materials. Here, we present the algorithms behind B-CALM (Belgium-California Light Machine), an open-source 3D-FDTD solver operating on Graphical Processing Units (GPU’s) with multi-pole dispersion models. Our modified architecture shows a reduction in computational times for multi-pole dispersion models for a broad spectral range. We benchmark B-CALM by computing the absorption efficiency of a metallic nanosphere with a one-pole and a three-poles Drude-Lorentz model and compare it with Mie theory.
November 14, 2011 by hgpu
