Reflection of an intense electromagnetic wave pulse is considered from a cl
ass of strongly nonlinear magnetic media. It is shown that almost all the i
ncident energy of the electromagnetic pulse can be reflected, and the polar
ization of the reflected wave will be rotated like magneto-optical Kerr eff
ect. Also constitutive equations for those media are obtained by analytical
solution of Maxwell equations. Such media can be of interest as a power li
miters against powerful laser pulses. (C) 2001 Elsevier Science B.V. All ri
ghts reserved.