title: Directional and monochromatic thermal emitter from epsilon-near-zero conditions in semiconductor hyperbolic metamaterials.
abstract: The development of novel thermal sources that control the emission spectrum and the angular emission pattern is of fundamental importance. In this paper, we investigate the thermal emission properties of semiconductor hyperbolic metamaterials (SHMs). Our structure does not require the use of any periodic corrugation to provide monochromatic and directional emission properties. We show that these properties arise because of epsilon-near-zero conditions in SHMs. The thermal emission is dominated by the epsilon-near-zero effect in the doped quantum wells composing the SHM. Furthermore, different properties are observed for s and p polarizations, following the characteristics of the strong anisotropy of hyperbolic metamaterials.
authors.affiliation: Sandia National Laboratories, P.O. Box 5800 Albuquerque NM 87185 USA.|Center for Integrated Nanotechnologies (CINT), Sandia National Laboratories, P.O. Box 5800 Albuquerque NM 87185 USA.
authors.forename: Salvatore
authors.initials: S
authors.lastname: Campione
authors.affiliation: Laboratoire Charles Fabry, Institut d Optique, CNRS-Univ Paris-Sud, Campus Polytechnique, RD128, 91127 Palaiseau Cedex, France.
authors.forename: Francois
authors.initials: F
authors.lastname: Marquier
authors.affiliation: Laboratoire Charles Fabry, Institut d Optique, CNRS-Univ Paris-Sud, Campus Polytechnique, RD128, 91127 Palaiseau Cedex, France.
authors.forename: Jean-Paul
authors.initials: JP
authors.lastname: Hugonin
authors.affiliation: Sandia National Laboratories, P.O. Box 5800 Albuquerque NM 87185 USA.
authors.forename: A Robert
authors.initials: AR
authors.lastname: Ellis
authors.affiliation: Sandia National Laboratories, P.O. Box 5800 Albuquerque NM 87185 USA.
authors.forename: John F
authors.initials: JF
authors.lastname: Klem
authors.affiliation: Sandia National Laboratories, P.O. Box 5800 Albuquerque NM 87185 USA.
authors.forename: Michael B
authors.initials: MB
authors.lastname: Sinclair
authors.affiliation: Sandia National Laboratories, P.O. Box 5800 Albuquerque NM 87185 USA.|Center for Integrated Nanotechnologies (CINT), Sandia National Laboratories, P.O. Box 5800 Albuquerque NM 87185 USA.
authors.forename: Ting S
authors.initials: TS
authors.lastname: Luk