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Twistronics-based polarization engineering
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DOI：10.1103/PhysRevApplied.22.054028.png)
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Electromagnetic wave polarization engineering with help from a pair of identical anisotropic metasurfaces of twisted optical axes, is introduced. Flawless linear polarization rotation and conversion to circular are demonstrated for lossless designs while symmetries between the responses of plasmonic and dielectric metasurfaces at different separating distances, are identified. The proposed concept expands the approach of twistronics in classical electrodynamics and reports optimal setups that can be directly utilized for polarization-controlled optical manipulation, holographic imaging, or angular-momentum multiplexing.
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