Fig. 4: Benchmarks on a large-area metasurface.
From: Fast multi-source nanophotonic simulations using augmented partial factorization
a, Schematic of the system: a 1-mm-wide metasurface consisting of 4,178 titanium dioxide ridges (blue rectangles) on a silica substrate (grey), operating at wavelength λ = 532 nm. PMLs are placed on all four sides. We compute the transmission matrix with up to 2W/λ = 3,761 truncated plane-wave inputs from the left and with \(M^{\prime} =2(W+40\lambda )/\lambda =\) 3,841 outgoing plane waves on the right. b,c, Computing time (b) and memory usage (c) versus the number M of input angles using different methods. See the caption of Fig. 2 for details. APF-c denotes APF with the matrices B and C compressed.
