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Spin–orbit coupling

Twisted light with a designed polar topology

Nature Nanotechnology volume 20, pages 859–860 (2025)Cite this article

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Ferroelectric membranes of BaTiO3 can form centre-convergent polar topology domes that couple with light to generate circularly polarized beams.

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Fig. 1: Creating a nonlinear vortex waveplate with freestanding BaTiO3 membranes.

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Authors and Affiliations

  1. State Key Laboratory of New Ceramic Materials, School of Materials Science and Engineering, Tsinghua University, Beijing, China

    Qian Li & Jingbo Sun

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  1. Qian Li
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  2. Jingbo Sun
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Correspondence to Qian Li or Jingbo Sun.

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The authors declare no competing interests.

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Li, Q., Sun, J. Twisted light with a designed polar topology. Nat. Nanotechnol. 20, 859–860 (2025). https://doi.org/10.1038/s41565-025-01927-y

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