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Broadband Decoupling of Intensity and Polarization with Vectorial Fourier Metasurfaces

Abstract : Intensity and polarization are two fundamental components of light. Independently control of them is of tremendous interest in many applications. In this paper, we propose a general vectorial encryption method, which enables arbitrary far-field light distribution with the local polarization, including orientations and ellipticities, decoupling intensity from polarization across a broad bandwidth using geometric phase metasurfaces. By revamping the well-known iterative Fourier transform algorithm, we propose “à la carte” design of far-field intensity and polarization distribution with vectorial Fourier metasurfaces. A series of non-conventional vectorial field distribution, mimicking cylindrical vector beams in the sense that they share the same intensity profile but with different polarization distribution and a speckled phase distribution, is demonstrated. Vectorial Fourier optical metasurfaces may enable important applications in the area of complex light beam generation, secure optical data storage, steganography and optical communications.
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Preprints, Working Papers, ...
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Contributor : Patrick Ferrand <>
Submitted on : Friday, January 15, 2021 - 9:23:48 AM
Last modification on : Thursday, April 1, 2021 - 4:13:26 PM
Long-term archiving on: : Friday, April 16, 2021 - 6:15:06 PM


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Qinghua Song, Arthur Baroni, Pin Chieh Wu, Sébastien Chenot, Virginie Brandli, et al.. Broadband Decoupling of Intensity and Polarization with Vectorial Fourier Metasurfaces. 2021. ⟨hal-03111022⟩



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