A fast direct solver for scattering from periodic structures with multiple material interfaces in two dimensions
arXiv:1307.7496 · doi:10.1016/j.jcp.2013.11.011
Abstract
We present a new integral equation method for the calculation of two-dimensional scattering from periodic structures involving triple-points (multiple materials meeting at a single point). The combination of a robust and high-order accurate integral representation and a fast direct solver permits the efficient simulation of scattering from fixed structures at multiple angles of incidence. We demonstrate the performance of the scheme with several numerical examples.
19 Pages. 8 Figures
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