Authors: A. Hieke and R. Tramel
Affilation: CFD Research Corporation, United States
Pages: 372 - 375
Keywords: FDTD, Maxwell’s equations, scattering, photonic crystal, unstructured mesh, integrated optics
The study of microsystems containing photonic crystals (PC) and meta-materials are rapidly growing fields of research. Finite-Difference Time-Domain (FDTD) full wave electromagnetic solvers are now increasingly used to investigate and design such systems. However, in order to simulate the electromagnetic response of such complex systems containing a large number of dielectric and/or conducting scatterers (e.g. band-gap effects) it is of foremost importance to gain sufficient evidence that the code being used is operating correctly. PEC and dielectric cylinders provide an important initial object to study the accuracy of scattering solutions. Timedepended analytical wave solution for complete 2D spaces, including inside materials, have been mapped and compared to FDTD solutions of the named examples using shape-conformal meshes. Therewith the basis has been established to execute reliable, large scale FDTD simulation containing several million cells.