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NANOPHOTONICS

Photonic Rashba effect

The intercalation of an antennae array with a geometric Pancharatnam–Berry phase into a defective two-dimensional photonic crystal slab enables a spin-dependent splitting of directional emission in momentum space, that is, a Rashba effect for photons.

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Fig. 1: All-dielectric metastructure for the photonic Rashba effect.

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Correspondence to Alex Krasnok.

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Krasnok, A. Photonic Rashba effect. Nat. Nanotechnol. 15, 893–894 (2020). https://doi.org/10.1038/s41565-020-0764-8

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