Optical activity in extrinsically chiral metamaterial

  title={Optical activity in extrinsically chiral metamaterial},
  author={E. Plum and V. A. Fedotov and N. Zheludev},
  journal={Applied Physics Letters},
  • E. Plum, V. A. Fedotov, N. Zheludev
  • Published 2008
  • Physics
  • Applied Physics Letters
  • We demonstrate optical activity in an intrinsically non-chiral anisotropic planar metamaterial. The phenomenon is due to extrinsic chirality resulting from the mutual orientation of the metamaterial structure and the incident electromagnetic wave. The polarization effect, which has a resonant nature, features a spectral band where linear birefringence is practically absent and can be easily tuned by tilting the plane of the metamaterial relative to the incident beam. 
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