Fig. 3From: All-Dielectric Metasurface Lenses for Achromatic Imaging Applicationsa Electric field distribution on the optical axis of a chromatic metalens. b and c Normalized energy on the optical axis of a chromatic metalens modulated by PB phase only and achromatic metalens modulated by PB phase combined with propagation phase, respectively. d Electric field distribution on the optical axis of an achromatic metalensBack to article page