Andersson, Ulf; Qiu, Min; Zhang, Ziyang Parallel power computation for photonic crystal devices. (English) Zbl 1132.78315 Methods Appl. Anal. 13, No. 2, 149-156 (2006). Summary: Three-dimensional finite-different time-domain (3D FDTD) simulation of photonic crystal devices often demands large amount of computational resources. In many cases it is unlikely to carry out the task on a serial computer. We have therefore parallelized a 3D FDTD code using MPI. Initially we used a one-dimensional topology so that the computational domain was divided into slices perpendicular to the direction of the power flow. Even though the speed-up of this implementation left considerable room for improvement, we were nevertheless able to solve largescale and long-running problems.Two such cases were studied: the power transmission in a two-dimensional photonic crystal waveguide in a multilayered structure, and the power coupling from a wire waveguide to a photonic crystal slab. In the first case, a power dip due to TE/TM modes conversion is observed and in the second case, the structure is optimized to improve the coupling.We have also recently completed a full three-dimensional topology parallelization of the FDTD code. MSC: 78M20 Finite difference methods applied to problems in optics and electromagnetic theory 78A50 Antennas, waveguides in optics and electromagnetic theory 65Y05 Parallel numerical computation Keywords:photonic crystals; Maxwell equations; finite difference time domain (FDTD); message passing interface (MPI); parallelization PDF BibTeX XML Cite \textit{U. Andersson} et al., Methods Appl. Anal. 13, No. 2, 149--156 (2006; Zbl 1132.78315) Full Text: DOI Euclid OpenURL