conference paper

Scattering Symmetries in Metagratings

Achouri, Karim  
Hess, Ortwin
•
Zouhdi, Saïd
July 17, 2026
META 2026 Dublin - The 16th International Conference on Metamaterials, Photonic Crystals and Plasmonics
16th International Conference on Metamaterials, Photonic Crystals and Plasmonics

We develop a simple formalism to connect the spatial symmetries of a metagrating unit cell and lattice to the shape of its scattering matrix. We use it to explain the emergence of extrinsic chirality in metagratings. And also to design metagratings exhibiting a step function response in momentum space.

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Achouri, K. (2026). Scattering Symmetries in Metagratings. In O. Hess & S. Zouhdi (Editors), META 2026 Dublin - The 16th International Conference on Metamaterials, Photonic Crystals and Plasmonics. 16th International Conference on Metamaterials, Photonic Crystals and Plasmonics, Dublin, Ireland, July 14, 2026. https://infoscience.epfl.ch/handle/20.500.14299/267363

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