Creating numerically efficient FDTD simulations using generic C plus plus programming

In the present work we propose a strategy for developing reusable multi-model simulation library for solving Finite-Difference Time-Domain (FDTD) problem for Maxwell's equations. The described EMTL (Electromagnetic Template Library) architecture is based on the selection of a small number of primitive low-level physical and numerical concepts which are used as parameters and building blocks for higher-level algorithms and structures. In the present work we demonstrate that a large set of FDTD techniques may be formulated using the same primitives. The basic concept for this representation is a discretized field contour entering the integral form of Maxwell's equations. We also describe the proposed architecture in terms of FDTD C++ template class library and discuss the performance and the usage of this library for various FDTD-based simulations.