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Versatile perovskites enable room-temperature topological polaritonics

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A room-temperature polaritonic valley Hall topological insulator has been developed by integrating topological photonics with perovskite-embedded optical cavities, for protected optical signal propagation along pre-designed paths.

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Fig. 1: Bird’s-eye view of particle propagation through a topologically protected edge state along the boundary between two two-dimensional spatial lattices composed of oppositely aligned hexagonal structures.

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Authors and Affiliations

  1. Institute of Experimental Physics, Faculty of Physics, University of Warsaw, Warsaw, Poland

    Helgi Sigurðsson & Barbara Piętka

  2. Science Institute, University of Iceland, Reykjavik, Iceland

    Helgi Sigurðsson

Authors
  1. Helgi Sigurðsson
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  2. Barbara Piętka
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Correspondence to Barbara Piętka.

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The authors declare no competing interests.

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Sigurðsson, H., Piętka, B. Versatile perovskites enable room-temperature topological polaritonics. Nat. Nanotechnol. (2024). https://doi.org/10.1038/s41565-024-01684-4

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