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OPTICAL PHYSICS

Topological lattices lit at the corners

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Higher-order topological states that are robust against certain classes of disorder and pinned to lattice corners are now observed in photonics platforms.

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Fig. 1: Topologically protected edge and corner states.

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Correspondence to Şahin K. Özdemir or Ramy El-Ganainy.

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Özdemir, Ş.K., El-Ganainy, R. Topological lattices lit at the corners. Nat. Photonics 13, 660–662 (2019). https://doi.org/10.1038/s41566-019-0523-2

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