Ws. Weiglhofer et A. Lakhtakia, Comment on "Rigorous solution for transient propagation of electromagneticwaves through a medium: causality plus diffraction in time", OPTICS LETT, 26(16), 2001, pp. 1218-1219
In a previous Letter [Opt. Lett. 25, 995 (2000)], Xiao claimed to have foun
d a "rigorous solution for transient propagation of electromagnetic waves t
hrough a medium." We show that Xiao's results apply strictly only to vacuum
, which serves as a reference medium in classical electromagnetics. (C) 200
1 Optical Society of America.