Experimentally excellent beaming in a two-layer dielectric structure

Opt Express. 2014 Sep 22;22(19):23147-52. doi: 10.1364/OE.22.023147.

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.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Computer Simulation*
  • Electric Conductivity*
  • Micro-Electrical-Mechanical Systems / methods*
  • Models, Theoretical*