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. 2022 Jun 28;11:195. doi: 10.1038/s41377-022-00885-7

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© The Author(s) 2022, corrected publication 2023

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Fig. 10 — a FT spectra for a hyperbolic metalens. b FT spectra for a spherical metalens. c FT spectra for quadratic metalenses with different NA. In panels a and b, the red and blue lines correspond to normal and oblique incidence, respectively. Reproduced with permission⁷². Copyright 2019, Optical Society of America. Panel c is reproduced with permission⁶³. Copyright 2020, American Chemical Society