  The change of the shape of an ultrashort electromagnetic pulse in its
propagation in solid-state plasma was calculated in the linear approximation. A
case of solid-state silver plasma and of a "Mexican hat" wavelet pulse was
considered. The dielectric permittivity of the medium was calculated in the
Drude model. Strong dispersion spreading of a pulse at distances of the order
of several microns was shown, and the comparison of evolution of the pulse
shape for different center frequencies was carried out.
