  The possibility of using plasmonic covers to drastically reduce the total
scattering cross section of spherical and cylindrical objects is discussed.
While it is intuitively expected that increasing the physical size of an object
may lead to an increase in its overall scattering cross section, here we see
how a proper design of these lossless metamaterial covers near their plasma
resonance may induce a dramatic drop in the scattering cross section, making
the object nearly invisible to an observer, a phenomenon with obvious
applications for low observability and non invasive probe design. Physical
insights into this phenomenon and some numerical results are provided.
