Theoretical modeling reveals boundary-driven nonreciprocal transmission in low-symmetry magnetic photonic crystals, suggesting practical designs for one-way optical components.
We develop an exact theory for light propagation in transversely-magnetized low-symmetry magnetic photonic crystals. We investigate the nature of nonreciprocal dispersion and unidirectionality in these systems and show that it is associated with boundary effects rather than propagation. We calculate the nonreciprocal response of finite structures and propose an asymmetric magneto-optical cavity as a practical building block for one-way optical components.
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Khanikaev et al. (2009) studied this question.
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