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Dispersion decomposes compound light into monochromatic components at different spatial locations, which needs to be eliminated in imaging but utilized in spectral detection. Metasurfaces provide a unique path to modulate the dispersion by adjusting the structural parameters without changing the material as required for refractive elements. However, the common linear phase compensation does not conform to the dispersion characteristics of the meta-unit, which limits the dispersion modulation indoi:10.21203/rs.3.rs-1237605/v1 fatcat:234krmacyjcotp4ei6lwnphssi