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Phys. Rev. E 71, 037603 (2005) [4 pages]

Polarization effects in the diffraction of light by a planar chiral structure

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S. L. Prosvirnin1 and N. I. Zheludev2,*
1Institute of Radio Astronomy, National Academy of Sciences of Ukraine, Kharkov, 61002, Ukraine
2EPSRC NanoPhotonics Portfolio Centre, School of Physics and Astronomy, University of Southampton, SO17 1BJ, United Kingdom

Received 22 September 2003; revised 31 August 2004; published 23 March 2005

We analyze polarization changes of light diffracted on a planar chiral array from the standpoint of the Lorentz reciprocity lemma and find biorthogonality in the polarization eigenstates for waves diffracting though the grating in the opposite direction. Both reciprocal and nonreciprocal components in the polarization azimuth rotation of the diffracted light are identified. The structural chirality of the array arrangement and the chirality of individual elements of the array give rise to polarization effects.

© 2005 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevE.71.037603
DOI:
10.1103/PhysRevE.71.037603
PACS:
42.25.Ja, 78.67.−n, 11.30.−j, 71.10.Pm

*Electronic address: n.i.zheludev@soton.ac.uk; URL: www.nanophotonics.org.uk