Enhanced Light Emitters Based on Metamaterials

Abstract : We report the development of light emitters based on hyperbolic metamaterials. During the 18 month program period in Queens College of CUNY (Nov 2012 May 2014), we successfully demonstrated growth of ultrasmooth silver films using germanium wetting layer, use of a high refractive index contrast grating to out-couple light from active hyperbolic metamaterials. We also successfully demonstrated for the first time simultaneous enhancement in spontaneous emission ad light extraction from active metamaterial structures.