Fig. 10: Fourier transforms (FT) amplitudes of the field generated by metalenses providing three different phase profiles. | Light: Science & Applications

Fig. 10: Fourier transforms (FT) amplitudes of the field generated by metalenses providing three different phase profiles.

From: Dielectric metalens for miniaturized imaging systems: progress and challenges

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

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