title: Angular distribution of emission from hyperbolic metamaterials.
abstract: We have studied angular distribution of emission of dye molecules deposited on lamellar metal/dielectric and Si/Ag nanowire based metamaterials with hyperbolic dispersion. In agreement with the theoretical prediction, the emission pattern of dye on top of lamellar metamaterial is similar to that on top of metal. At the same time, the effective medium model predicts the emission patterns of the nanowire array and the dye film deposited on glass to be nearly identical to each other. This is not the case of our experiment. We tentatively explain the nearly Lambertian (∝cosθ) angular distribution of emission of the nanowire based sample by a surface roughness.
authors.affiliation: Center for Materials Research, Norfolk State University, Norfolk, VA, 23504, USA.
authors.forename: Lei
authors.initials: L
authors.lastname: Gu
authors.affiliation: Center for Materials Research, Norfolk State University, Norfolk, VA, 23504, USA.
authors.forename: J E
authors.initials: JE
authors.lastname: Livenere
authors.affiliation: Center for Materials Research, Norfolk State University, Norfolk, VA, 23504, USA.
authors.forename: G
authors.initials: G
authors.lastname: Zhu
authors.affiliation: Center for Materials Research, Norfolk State University, Norfolk, VA, 23504, USA.
authors.forename: T U
authors.initials: TU
authors.lastname: Tumkur
authors.affiliation: Department of Electrical and Computer Engineering, University of Alberta, Edmonton, AB T6G 2V4, Canada.
authors.forename: H
authors.initials: H
authors.lastname: Hu
authors.affiliation: Department of Electrical and Computer Engineering, University of Alberta, Edmonton, AB T6G 2V4, Canada.
authors.forename: C L
authors.initials: CL
authors.lastname: Cortes
authors.affiliation: Department of Electrical and Computer Engineering, University of Alberta, Edmonton, AB T6G 2V4, Canada.
authors.forename: Z
authors.initials: Z
authors.lastname: Jacob
authors.affiliation: Electronic Science and Technology Division, Naval Research Lab, Washington DC, 20375, USA.
authors.forename: S M
authors.initials: SM
authors.lastname: Prokes
authors.affiliation: Center for Materials Research, Norfolk State University, Norfolk, VA, 23504, USA.
authors.forename: M A
authors.initials: MA
authors.lastname: Noginov