Fig. 1: Bioinspired chiral metasurface design. | Light: Science & Applications

Fig. 1: Bioinspired chiral metasurface design.

From: Nature-inspired chiral metasurfaces for circular polarization detection and full-Stokes polarimetric measurements

Fig. 1

a Anatomical schematic of ommatidium in the compound eye of mantis shrimp responsible for circularly polarized light detection. Left side shows the longitudinal cross section of the midband in the compound eye. Right side shows the transverse cross section of the R8 and R1–7 cells along the dashed line in the longitudinal cross section. b Schematics of ommatidium-like double-layer metamaterial (ODLM) design, where the dielectric metasurface behaves as artificial R8 cells and the nanogratings behave as R1–7 microvilli that differentiate the linear polarization perpendicular or parallel to the microvilli axis. c Theoretically calculated CPER based on Jones calculus, as a function of the relative phase difference between the fast and slow axes of the metasurface QWP and LPER of the polarizing nanograting. a was adapted with permission from Nature Publishing Group42

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