Metamaterial plane-slab focusing and sub-wavelength imaging—The concept, analysis and characterization

Metamaterial or Left-Handed Material (LHM) plane-slab is capable of focusing an object point to the image point and can also get over the problem of diffraction limit of conventional optics, leading to the possibility of sub-wavelength imaging. In this paper the concept of metamaterial plane-slab focusing and sub-wavelength imaging has been discussed from a physical point of view with relevant mathematical analysis. Using suitable analytical model equations, the phenomena of focusing and sub-wavelength imaging with metamaterial plane-slab has been addressed to obtain an in-depth understanding from a designer´s point of view considering the major issue of loss in metamaterial slab.