Fig. 4: Imaging using the achromatic metalens with NAββ=ββ0.155.

aβf The images of element 5 and 6, group 7 of the 1951 Unites States Air Force resolution target recorded by the achromatic metalens at different wavelengths. The images have the same scale bar. gβi The full-color images formed by the achromatic metalens without color correction.