A scalar scheme has been proposed to design photonic crystals that possess bulk dispersions resembling scalar waves and surface modes that support skyrmion-like textures. This approach addresses the challenges of realizing three-dimensional topological photonic crystals, which usually have complicated dispersions and leaky surface modes inside the light cone.
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This is a summary of: Yang, B. et al. Scalar topological photonic nested meta-crystals and skyrmion surface states in the light cone continuum. Nat. Mater. https://doi.org/10.1038/s41563-023-01587-0 (2023).
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Scalar photonic crystals with non-radiative topological surface modes. Nat. Mater. 22, 1173–1174 (2023). https://doi.org/10.1038/s41563-023-01588-z
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DOI: https://doi.org/10.1038/s41563-023-01588-z
