A modular implementation of the boundary integral method for dielectric bodies using electromagnetic duality

We present a simple, modular way to extend the numerical implementation of the boundary integral method (BIM) for perfectly conducting objects to an implementation for simple dielectric objects, by using the electromagnetic duality principle. Furthermore, we show how a variety of different BIM formulations can be implemented in this way. Finally, we test their efficiency and accuracy on a realistic model of intermediate complexity and on a canonical problem (dielectric sphere).