publication detail

Metallo-dielectric metasurfaces for thermal emission with controlled spectral bandwidth and angular aperture

AUTHORS

  • Blanchard C.
  • Wojszvzyk L.
  • Jamois Cecile
  • Leclercq Jean -Louis
  • Chevalier Céline
  • Ferrier Lydie
  • Viktorovitch P.
  • Moldovan-Doyen I.
  • Marquier François
  • Greffet Jean-Jacques
  • Letartre Xavier

KEYWORDS

  • Bandwidth
  • Angular apertures
  • Angular emission
  • IR source
  • Metallodielectric
  • Metasurface
  • Periodic arrays
  • Spectral bandwidth
  • Spectral emission
  • Thermal
  • Thermal emissions
  • Dielectric devices

    • Document type

    Journal articles

    Résumé

    We introduce thermal metallo-dielectric metasurfaces as mid IR sources. The emitter is a lossy metal. The spectral and angular emission is controlled using a periodic array of high refractive dielectric resonators. We introduce a design that allows to control independently the emission bandwidth and the angular aperture while ensuring a large emissivity. To validate the concept, we fabricated and characterized a metasurface, showing a good agreement with the theory.

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