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Thin-film polymeric metasurfaces for visible wavelengths

Photonic Metasurfaces (MSs) have now become one of the key platforms to encode multiplexed holographic information, using e.g. wavelength, angular momentum, angle of incidence and polarization of the light source. Traditionally, the meta-atoms composing the MSs are made structuring at subwavelength scales composite materials. However, while this enables a variety of interesting scattering properties that can be used to add functionalities to MSs, using a single material would often be preferable, to facilitate the design and fabrication of the devices.

In this paper, we demonstrate a new class of holographic metasurfaces made by a simple polymeric membrane for holographic applications. Our devices retain good efficiency while being transparent, broadband, polarization-independent, flexible, and conformable.