title: Negative refraction and sub-wavelength imaging through surface waves on structured perfect conductor surfaces.
abstract: We report that the negative refraction can be achieved through surface waves on a metal surface with the array of drilled holes. Using a rigid full-vectorial three-dimensional finite-difference time-domain method, we also demonstrate the sub-wavelength imaging of a point dipole source by a slab of such a structure.
authors.forename: Zhichao
authors.initials: Z
authors.lastname: Ruan
authors.forename: Min
authors.initials: M
authors.lastname: Qiu