On the Applicability of Photonic Crystal Membranes to Multi-Channel Propagation

The Unfolding of Bandgap Diagrams of Hexagonal Photonic Crystals Computed With FDTD

“…Moreover, if a simulation tool is equipped with a conformal FDTD meshing technique [14,15], non-rectangular geometries can be easily taken into account on a rectangular FDTD grid, without any increase of computational effort of the simulation. The aforementioned features are some of the reasons that FDTD is frequently applied to the computation of PBG diagrams of more complicated geometries, such as PhC membranes [16] or quantum cascade lasers [17]. It should be also emphasized that FDTD is very competitive when the scenario is electrically large, since the computational cost of the method increases not that large as for other full-wave numerical methods [13].…”