Advances in FDTD for dispersive and high frequency simulations

Recent advances in the treatment of dispersive materials in FDTD solvers have enabled the study of demanding multipole dispersion. For academic examples with simple geometries the average simulation time is still large compared to other numerical techniques. However, the increase in efficiency allows the exploitation of the advantages and strengths of FDTD in this area, and problems such as, for example, plasmonic resonant structures can be solved with a modest and inexpensive set of hardware in a common desktop computer.