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TOPOLOGICAL PHOTONICS

Topology in momentum space becomes real

Nature Photonics volume 14, pages 595–596 (2020)Cite this article

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Using topological singular points, the topological charge of photonic crystals in momentum space is successfully transferred to optical vortex beams in real space.

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Fig. 1: Generation of an optical vortex with ei2θ by a photonic crystal.

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Authors and Affiliations

  1. Department of Physics, Tokyo Institute of Technology, Meguro, Tokyo, Japan

    Masaya Notomi

  2. NTT Basic Research Laboratories, Atsugi, Kanagawa, Japan

    Masaya Notomi

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  1. Masaya Notomi
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Correspondence to Masaya Notomi.

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Notomi, M. Topology in momentum space becomes real. Nat. Photonics 14, 595–596 (2020). https://doi.org/10.1038/s41566-020-0693-y

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