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Keywords:

  • anisotropic;
  • dielectrics;
  • metamaterials;
  • nanolaminates

Abstract

Thumbnail image of graphical abstract

Nanolaminates built from ultra-thin, ultra-smooth films of amorphous metals, and solution-processed oxides represent a new platform for dispersion engineering. Materials exhibiting anisotropic elliptical dispersion and hyperbolic dispersion with positive refraction are realized through choice of amorphous metal and laminate design. Transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), polarized reflectance measurements, and effective medium theory are combined to demonstrate the precision and predictability of the fabrication techniques and optical properties from ultra-violet to infra-red frequencies.

Engineering anisotropic dielectric response through amorphous laminate structures.