Miroshnichenko, Andrey E.; Brasselet, Etienne; Kivshar, Yuri S.
We demonstrate how to achieve reversible nonreciprocal optical response in a
periodic photonic structure with a pair of defects, one of them being a
nonlinear liquid crystal defect layer. The twin defect layers structure is
symmetric at low intensity and becomes asymmetric above a power threshold
corresponding to the optical reordering of the liquid crystal. We show that
nonreciprocal effects can be reversed by changing the wavelength as a
consequence of the defect mode dependent light...[Show more]
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