All-angle negative refraction and evanescent wave amplification using one-dimensional metallodielectric photonic crystals

The authors numerically demonstrate all-angle negative refraction for propagating waves, as well as evanescent wave amplifications, using a one-dimensional photonic crystal consisting of metal-dielectric multilayers. Their structure has uniform surfaces parallel to the object plane and operates at the visible wavelength range. Using realistic material parameters including loss, they design a Ag-Si3N4 multilayer structure and verified its subwavelength resolution in the image formation process. (c) 2006 American Institute of Physics.