Study of plasmonic crystals by Plasmon Tomography far-field Superlenses

We explore the use of surface plasmon polariton (SPP) tomography far-field superlenses for quantitative characterization of plasmonic crystals. Useful semi-empirical relations are obtained from the quantitative information extracted from the FP images. In addition, based on the comparison of the FP images corresponding to plasmonic crystals with holes of different sizes, we present a comprehensive discussion about the formation of directional stop-bands in the fabricated plasmonic crystals.