  We experimentally show the results of the illusion device designed by the
transformation optics (TO) technique. The coordinate transformation maps a zero
thickness in virtual space to a finite region in physical space, yielding
extreme material properties called optical null media (ONM). As a result, an
object placed inside the core media will look larger to an outside observer.
ONM media is realized using metal-dielectric layered structures in cylindrical
coordinates. Also closed-form solutions for the scattering field from a
cylindrical object are given in detail to prove illusion effect analytically.
ONM media is realized using air and iron sheets in radial structure using
effective medium theory. We experimentally fabricate the ONM and show the
scattering effect using the ONM. For achieving illusion validation, a metallic
pipe has been inserted into the center of the core medium made of Plexiglas and
surrounded by ONM.
