Fig. 1: Concept sketch, design and SEM image of polarization-transformation metasurface.
From: Metasurface-integrated elliptically polarized laser-pumped SERF magnetometers

a Conceptual sketch of the integrated elliptically polarized laser-pumped SERF magnetometer. PM polarization-transformation metasurface, PBS polarization beam splitter, PD photodiode. b Photograph of the fabricated polarization-transformation metasurface. c Scanning electron microscopy (SEM) image of the polarization-transformation metasurface. d Algorithm flow chart for designing the polarization-transformation metasurface