To. Korner et W. Fichtner, AUXILIARY DIFFERENTIAL-EQUATION - EFFICIENT IMPLEMENTATION IN THE FINITE-DIFFERENCE TIME-DOMAIN METHOD, Optics letters, 22(21), 1997, pp. 1586-1588
An efficient algorithm for modeling dispersive media in finite-differe
nce time-domain methods is presented. It is based on the auxiliary dif
ferential equation method for treatment of Lorentz media with an arbit
rary number of relaxations. The algorithm shows excellent accuracy of
second order in time and space and is efficient in both memory require
ments and computational effort. (C) 1997 Optical Society of America.