title: Experimentally excellent beaming in a two-layer dielectric structure.
abstract: We demonstrate both experimentally and theoretically that a two-layer dielectric structure can provide collimation and enhanced transmission of a Gaussian beam passing through it. This is due to formation of surface localized states along the layered structure and the coupling of these states to outgoing propagating waves. A system of multiple cascading two-layers can sustain the beaming for large propagation distances.
authors.forename: Anna C
authors.initials: AC
authors.lastname: Tasolamprou
authors.forename: Lei
authors.initials: L
authors.lastname: Zhang
authors.forename: Maria
authors.initials: M
authors.lastname: Kafesaki
authors.forename: Thomas
authors.initials: T
authors.lastname: Koschny
authors.forename: Costas M
authors.initials: CM
authors.lastname: Soukoulis
mesh_terms: D003198:Computer Simulation; D004553:Electric Conductivity; D055617:Micro-Electrical-Mechanical Systems / Q000379:methods*; D008962:Models, Theoretical