Unitary Polynomial Propagator Solving Maxwell’s Equations Allowing Arbitrarily Large Time Steps.

A novel fully explicit vectorial time-domain algorithm for the analysis of photonic devices capable of solving Maxwell’s equations with arbitrarily large time steps is presented. Furthermore, the time-domain propagation algorithm ensures energy conservation and stability. For this purpose, a unitary time-domain propagation scheme is defined by a suitable polynomial expansion of the propagator. [ABSTRACT FROM AUTHOR]