Fig. 12: Applications of achromatic metalenses in lenslet-array-based imaging systems.

a Schematic of integral imaging based on achromatic metalenses. b Reconstructed images in the cases of d_D = d₃ (top row), d_D > d₃ (middle row), and d_D > d₃ (bottom row). c Schematic diagram of light-field imaging with metalens array and rendered images. d Rendered achromatic images focusing on the rocket with depths of 50, 54, and 66.5 cm (top row), the corresponding estimated depth maps (middle row), and rendered all-in-focus images (bottom row). Panels a and b are reproduced with permission⁹⁹. Copyright 2019, The Authors, published by Springer Nature. Panels c and d are reproduced with permission¹⁰⁰. Copyright 2019, The Authors, published by Springer Nature