Contrast Capability of the NRI Lens

It is shown by simulation that a sharp image of a lossy object with an abrupt change in permittivity can be obtained using a negative-refractive-index (NRI) lens at 3 GHz. The object is illuminated by a TEM wave and the reflections are focused onto the image plane. The fields on the image plane are sampled and analyzed. This opens up the possibility of applying the NRI lens in medical imaging.