Non-reciprocity and topology in optics: one-way road for light via surface magnon polariton |
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Authors: | Tetsuyuki Ochiai |
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Affiliation: | Photonic Materials Unit, National Institute for Materials Science (NIMS), Tsukuba 305-0044, Japan |
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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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Keywords: | non-reciprocity one-way photonic crystal ferrite surface magnon polariton |
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