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Unveiling the topological nature of electromagnetic surface waves

13 Feb 2019 Michela Picardi 
interface media helicities
An interface between media with different helicities (red and blue curly arrows) supports zero-helicity linearly polarized surface modes (green arrow). (Credit: Konstantin Bliokh)
Maxwell’s electromagnetic theory, formulated 150 years ago, was one of the greatest breakthroughs

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