Full‐Color Metaoptical Imaging in Visible Light

Metaoptics is a fast-growing field with the potential to dramatically miniaturize image sensors. Unlike many other scientific endeavors, metaoptics are poised make technological and commercial impact within few decades of inception. In particular, touted for next-generation, multifunctional optical elements, largely replace refractive optics. The performance full-color imaging, however, remains poor due strong chromatic aberrations. Arguably, color cameras most prevalent in lives, this application significantly limits their opportunities. Herein, current landscape imaging visible wavelength range using reviewed. Imaging approaches single metaoptic focused on, where size weight can be reduced by largest amount. Future research directions effect outlined.