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Phys Rev Lett. 2006 Oct 20;97(16):167401. Epub 2006 Oct 17.

Asymmetric propagation of electromagnetic waves through a planar chiral structure.

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EPSRC Nanophotonics Portfolio Centre, School of Physics and Astronomy, University of Southampton, UK.


We report that normal incidence transmission of circularly polarized waves through the lossy anisotropic planar chiral structure is asymmetric in the opposite direction. The new effect is fundamentally distinct from conventional gyrotropy of bulk chiral media and the Faraday effect, where the eigenstates are a pair of counterrotating elliptical states, while the eigenstates of the lossy anisotropic planar chiral structure are two corotating elliptical polarizations.

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