Multi-foci metalens for spectra and polarization ellipticity

As fundamental properties of light, spectra and polarization carry vital information concerning the propagation of light waves. For example, spectral imaging can reflect the material composition of objects, while polarized imaging contains information on the texture of the surface, light polarization, and/or spatial distribution of the optical properties of a scene.

Active multiband varifocal metalenses based on orbital angular momentum division multiplexing

Dynamic polarization rotation and vector field steering based on phase change metasurface

Linear polarization holography

Effects of the ellipticity and the handedness of the incident

a) Schematic of multiple reflections in the Fabry–Pérot‐like

Hot Paper - Multi-foci metalens for spectra and polarization ellipticity recognition and reconstruction

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