Roadmap on topological photonics

Hannah Price, Yidong Chong, Alexander Khanikaev, Henning Schomerus, Lukas J. Maczewsky, Mark Kremer, Matthias Heinrich, Alexander Szameit, Oded Zilberberg, Yihao Yang, Baile Zhang, Andrea Alù, Ronny Thomale, Iacopo Carusotto, Philippe St-Jean, Alberto Amo, Avik Dutt, Luqi Yuan, Shanhui Fan, Xuefan YinChao Peng, Tomoki Ozawa, Andrea Blanco-Redondo

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Topological photonics seeks to control the behaviour of the light through the design of protected topological modes in photonic structures. While this approach originated from studying the behaviour of electrons in solid-state materials, it has since blossomed into a field that is at the very forefront of the search for new topological types of matter. This can have real implications for future technologies by harnessing the robustness of topological photonics for applications in photonics devices. This Roadmap surveys some of the main emerging areas of research within topological photonics, with a special attention to questions in fundamental science, which photonics is in an ideal position to address. Each section provides an overview of the current and future challenges within a part of the field, highlighting the most exciting opportunities for future research and developments. 
Original languageEnglish
Article number032501
JournalJournal of Physics: Photonics
Issue number3
Publication statusPublished - 27 Jun 2022

Bibliographical note

Funding Information:
H M P is supported by the Royal Society via Grants UF160112, RGF/EA/180121 and RGF/R1/180071. C Y D acknowledges support from the Singapore MOE Academic Research Fund Tier 3 Grant MOE2016-T3-1-006, and the National Research Foundation Competitive Research Programs NRF-CRP23-2019-0005 and NRF-CRP23-2019-0007. A B K acknowledges support by the ONR Award N00014-21-1-2092, the NSF Grant DMR-1809915, and the Simons Collaboration on Extreme Wave Phenomena.


  • Floquet topological photonics
  • synthetic gauge fields
  • topological photonics

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering


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