Non-reciprocity and topology in optics: One-way road for light via surface magnon polariton

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Abstract

We show how non-reciprocity and topology are used to construct an optical one-way waveguide in the Voigt geometry. First, we present a traditional approach of the one-way waveguide of light using surface polaritons under a static magnetic field. Second, we explain a recent discovery of a topological approach using photonic crystals with the magneto-optical coupling. Third, we present a combination of the two approaches, toward a broadband one-way waveguide in the microwave range.

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Ochiai, T. (2015). Non-reciprocity and topology in optics: One-way road for light via surface magnon polariton. Science and Technology of Advanced Materials, 16(1). https://doi.org/10.1088/1468-6996/16/1/014401

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