Nonreciprocal diffraction through dielectric gratings with two-dimensional chirality

A. Potts*, W. Zhang, D. M. Bagnall

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)


It is generally assumed that the propagation of light through a dielectric medium is always reciprocal under reversal of the propagation direction. We show that in an all-dielectric diffractive system nonreciprocal polarization changes are possible for individual diffracted beams when the diffractive medium possesses two-dimensional chirality. This nonreciprocity is characterized by different eigenstates for the system for the forward and reverse directions respectively, yet it is also entirely consistent with the predictions of the Lorentz reciprocity lemma.

Original languageEnglish
Article number043816
Number of pages14
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Issue number4
Publication statusPublished - 10 Apr 2008
Externally publishedYes


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