Ptychography retrieval of fully polarized holograms from geometric-phase metasurfaces

Qinghua Song, Arthur Baroni, Rajath Sawant, Peinan Ni, Virginie Brandli, Sébastien Chenot, Stéphane Vézian, Benjamin Damilano, Philippe Mierry, Samira Khadir, Patrick Ferrand and Patrice Genevet ()
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Qinghua Song: Université Cote d’Azur, CNRS, CRHEA, Rue Bernard Gregory
Arthur Baroni: Aix Marseille Université, CNRS, Centrale Marseille, Institut Fresnel
Rajath Sawant: Université Cote d’Azur, CNRS, CRHEA, Rue Bernard Gregory
Peinan Ni: Université Cote d’Azur, CNRS, CRHEA, Rue Bernard Gregory
Virginie Brandli: Université Cote d’Azur, CNRS, CRHEA, Rue Bernard Gregory
Sébastien Chenot: Université Cote d’Azur, CNRS, CRHEA, Rue Bernard Gregory
Stéphane Vézian: Université Cote d’Azur, CNRS, CRHEA, Rue Bernard Gregory
Benjamin Damilano: Université Cote d’Azur, CNRS, CRHEA, Rue Bernard Gregory
Philippe Mierry: Université Cote d’Azur, CNRS, CRHEA, Rue Bernard Gregory
Samira Khadir: Université Cote d’Azur, CNRS, CRHEA, Rue Bernard Gregory
Patrick Ferrand: Aix Marseille Université, CNRS, Centrale Marseille, Institut Fresnel
Patrice Genevet: Université Cote d’Azur, CNRS, CRHEA, Rue Bernard Gregory

Nature Communications, 2020, vol. 11, issue 1, 1-8

Abstract: Abstract Controlling light properties with diffractive planar elements requires full-polarization channels and accurate reconstruction of optical signal for real applications. Here, we present a general method that enables wavefront shaping with arbitrary output polarization by encoding both phase and polarization information into pixelated metasurfaces. We apply this concept to convert an input plane wave with linear polarization to a holographic image with arbitrary spatial output polarization. A vectorial ptychography technique is introduced for mapping the Jones matrix to monitor the reconstructed metasurface output field and to compute the full polarization properties of the vectorial far field patterns, confirming that pixelated interfaces can deflect vectorial images to desired directions for accurate targeting and wavefront shaping. Multiplexing pixelated deflectors that address different polarizations have been integrated into a shared aperture to display several arbitrary polarized images, leading to promising new applications in vector beam generation, full color display and augmented/virtual reality imaging.

Date: 2020
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DOI: 10.1038/s41467-020-16437-9

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