B. Ritchie et Md. Feit, FAST FOURIER-TRANSFORM COMPUTATIONAL METHOD FOR THE PROPAGATION OF ELECTROMAGNETIC PULSES THROUGH LAYERED DIELECTRIC MEDIA, Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics, 53(2), 1996, pp. 1976-1981
A computational method is developed for solving the wave equation for
the propagation of a pulse through layered dielectric media. The metho
d is based on an ansatz for evaluating fields in each layer after a te
mporal interval dt using a Fourier method. The resulting spatial field
s represent the solution to the wave equation provided dt is small eno
ugh that many temporal intervals are required for the passage of the p
ulse through a boundary.