Loss enhanced transmission and collimation in anisotropic epsilon-near-zero metamaterials

  title={Loss enhanced transmission and collimation in anisotropic epsilon-near-zero metamaterials},
  author={Lei Sun and Simin Feng and Xiaodong Yang},
  journal={Applied Physics Letters},
We verify the extraordinary transmission enhancement and collimation induced by the material loss in anisotropic epsilon-near-zero metamaterials, and reveal the physical mechanism of this exotic electromagnetic phenomenon via the iso-frequency contour analysis. In addition, we demonstrate the possibility in realization of such loss enhanced transmission of Gaussian beam in realistic silver-germanium multilayered structures by applying full-wave numerical simulations. 

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