S. Radic et N. George, ULTRAFAST PULSE-PROPAGATION IN PERIODIC OPTICAL MEDIA - A GENERALIZEDFINITE-DIFFERENCE TIME-DOMAIN APPROACH, Optics letters, 19(14), 1994, pp. 1064-1066
A generalized finite-difference time-domain method is used to model th
e propagation of ultrafast optical pulses through periodic structures
with a frequency-dependent material response. Excellent agreement with
a thin multilayer decomposition is found for the cases of dispersive
and nondispersive optical media.