Fig. 2: Perturbation simulation results for the Golay aperture with d = 16 mm and D = 89 mm, simulated at λ = 4.5 μm, along with images of the fabricated metalenses. | Nature Communications

Fig. 2: Perturbation simulation results for the Golay aperture with d = 16 mm and D = 89 mm, simulated at λ = 4.5 μm, along with images of the fabricated metalenses.

From: A golay metalens for long-range, large aperture, thermal imaging via sparse aperture computational imaging

Fig. 2: Perturbation simulation results for the Golay aperture with d = 16 mm and D = 89 mm, simulated at λ = 4.5 μm, along with images of the fabricated metalenses.

a Configuration in which all apertures except the central aperture can be perturbed in both  ±x and  ±y directions. b Different perturbation limits and the corresponding average peak signal-to-noise ratio (PSNR) for all perturbations within each limit, with the dash-dot line representing the PSNR of the unperturbed Golay aperture, and the dotted line representing the effective aperture’s PSNR. c Schematic diagram of scatterer nanostructures. d Zoomed-in scanning electron microscopy (SEM) images of the nanostructures of the fabricated lens. Photographs of the fabricated Golay6+1 metalens (e), the fabricated central aperture (f), and the fabricated effective aperture (g).

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