[1] O' Shea D C, Suleski T J, Kathman A D, et al. Diffractive Optics: Design, Fabrication, and Test[M]. Washington: SPIE Press, 2004: 57-82.
[2] Yu N, Gnevet P, Mikhail A K, et al. Light propagation with phase discontinuities: Generalized laws of reflection and refraction [J]. Science, 2011, 334(6054): 333. doi:  10.1126/science.1210713
[3] Khorasaninejad M, Chen W T, Devlin R C, et al. Metalenses at visible wavelengths: diffraction limited focusing and subwavelength resolution imaging [J]. Science, 2016, 352(6290): 1190-1194. doi:  10.1126/science.aaf6644
[4] Khorasaninejad M, Shi Z, Zhu A Y, et al. Achromatic metalens over 60 nm bandwidth in the visible and metalens with reverse chromatic dispersion [J]. Nano Lett, 2017, 17(3): 1819-1824. doi:  10.1021/acs.nanolett.6b05137
[5] Chen W T, Zhu A Y, Sanjeev V, et al. A broadband achromatic metalens for focusing and imaging in the visible [J]. Nat Nanotechnology, 2018, 13(3): 220-226. doi:  10.1038/s41565-017-0034-6
[6] Wang S, Wu P, Su V, et al. A broadband achromatic metalens in the visible [J]. Nat Nanotechnology, 2018, 13(3): 227-232. doi:  10.1038/s41565-017-0052-4
[7] Wang P, Mohammad N, Menon R, et al. Chromatic-aberration-corrected diffractive lenses for ultra-broadband focusing [J]. Scientific Reports, 2016, 6: 21545. doi:  10.1038/srep21545
[8] Wang P, Mohammad N, Shen B, et al. Broadband imaging with one planar diffractive lens [J]. Scientific Reports, 2018, 8: 2799. doi:  10.1038/s41598-018-21169-4
[9] Meem M, Majumder A, Menon R, et al. Full-color video and still imaging using two flat lenses [J]. Opt Express, 2018, 26(21): 26866-26871. doi:  10.1364/OE.26.026866
[10] Meem M, Soueangsu B, Majumder A, et al. Broadband lightweight flat lenses for long-wave infrared imaging [J]. PNAS, 2019, 116(43): 21375-21378. doi:  10.1073/pnas.1908447116
[11] Francisco A, Patrice G, Mikhail A, et al. Aberration--free ultrathin flat lenses and axicons at telecom wavelengths based on plasmonic metasurfaces [J]. Nano Lett, 2012, 12(9): 4932-4936. doi:  10.1021/nl302516v
[12] Shrestha S, Overvig A C, Lu Ming, et al. Broadband achromatic dielectric metalenses [J]. Light: Science & Applications, 2018, 7(6): 85.
[13] Pestourie R, Pérez-Arancibia C, Lin Z, et al. Inverse design of large-area metasurfaces [J]. Opt Express, 2018, 26(26): 33732-33747. doi:  10.1364/OE.26.033732
[14] Chung H J, Owen M. High-NA achromatic metalenses by inverse design [J]. Opt Express, 2020, 29(5): 6945-6965.
[15] Lin Z, Johnson S G. Overlapping domains for topology optimization of large-area metasurfaces [J]. Opt Express, 2019, 27(22): 32445-32453. doi:  10.1364/OE.27.032445
[16] Chen C, Song W, Chen J W, et al. Spectral tomographic imaging with aplanatic metalens [J]. Light: Science & Applications, 2019, 8(6): 99.