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. 2023 Oct 14;14:6484. doi: 10.1038/s41467-023-42271-w

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Fig. 3 — a–c SEM images of the metasurface. d The target transmission profile (Treq) (black line) and transmission profile of the metasurface along its radius at 450 nm (purple dashed line), 550 nm (blue dotted line), and 660 nm (red line) wavelengths.