One-Dimensional Chirality: Strong Optical Activity in Epsilon-Near-Zero Metamaterials.

  title={One-Dimensional Chirality: Strong Optical Activity in Epsilon-Near-Zero Metamaterials.},
  author={Carlo Rizza and Andrea Di Falco and Michael Scalora and Alessandro Ciattoni},
  journal={Physical review letters},
  volume={115 5},
We suggest that electromagnetic chirality, generally displayed by 3D or 2D complex chiral structures, can occur in 1D patterned composites whose components are achiral. This feature is highly unexpected in a 1D system which is geometrically achiral since its mirror image can always be superposed onto it by a 180 deg rotation. We analytically evaluate from first principles the bianisotropic response of multilayered metamaterials and we show that the chiral tensor is not vanishing if the system… 

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