Circular dichroism induced by Fano resonances in planar chiral oligomers

@article{Hopkins2014CircularDI,
  title={Circular dichroism induced by Fano resonances in planar chiral oligomers},
  author={Ben Hopkins and Alexander N. Poddubny and Andrey E. Miroshnichenko and Yuri S. Kivshar},
  journal={Laser \& Photonics Reviews},
  year={2014},
  volume={10}
}
We present a general theory of circular dichroism in planar chiral nanostructures with rotational symmetry. It is demonstrated, analytically, that the handedness of the incident field's polarization can control whether a nanostructure induces either absorption or scattering losses, even when the total optical loss (extinction) is polarization‐independent. We show that this effect is a consequence of modal interference so that strong circular dichroism in absorption and scattering can be… 
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