Diaz-Fitzgerald time domain (D-FTD) technique applied to electromagnetic problems

A new approach for the solution of electromagnetic problems is presented and tested. The method is based of the discretization of Maxwell´s equations, but it differs from the FDTD implementation in that it exploits a different scheme to model wave propagation. Vector and Scalar potential are used instead of the magnetic field, to propagate the electric field. This implementation provides a condensed node representation for the electric field, offers a natural way to treat interfaces, and allows modeling of Debye relaxation media, avoiding convolution. Additionally a mechanical analog can be devised.