Fig. 5: Chiral metasurface imaging technology.
From: Advances on broadband and resonant chiral metasurfaces
a Top: Imaging with the multispectral chiral lens (MCHL). The MCHL forms three images of the beetle. Mid: Circular dichroism from two different parts of the beetle as a function of wavelength. Bot: Image of the fabricated multispectral chiral lens91. b Top: RCP and LCP images taken of the resolution test chart with the chiral meta-lens for RCP and LCP illumination at 500 nm. Mid: The first row is a traditional brightfield image captured with LCP incidence. The second row is the case of RCP incidence. From left to right, the illumination wavelengths are 480 nm,530 nm, 630 nm. Bot: SEM images of titanium dioxide nanopillar array92. c Top: RCP and LCP images taken of the 1951 USAF resolution test chart with the chiral meta-lens for RCP and LCP illumination at 500 nm. Mid: The polarization contrast for RCP - LCP from 470 nm to 650 nm. Bot: Top-side view of the SEM micrograph picture at the edge of the metasurface lens170.
