Design of a vector multi-foci metalens for full stokes imaging polarimetry
S Wang, T Hu, S Wang, M Zhao, Z Yang - arXiv preprint arXiv:2307.01707, 2023 - arxiv.org
S Wang, T Hu, S Wang, M Zhao, Z Yang
arXiv preprint arXiv:2307.01707, 2023•arxiv.orgImaging polarimetry based on dielectric metasurface is well-known for its ultra-compactness
and high integration. However, previous works suffer from low energy efficiency, limited
restrictions on choice of target polarization states, or inability to focus light. Here, by inverse
design, we numerically demonstrate a multi-foci metalens-based polarimetry that can
simultaneously separate and focus the four free-chosen elliptical polarization states at the
wavelength of 10.6\mu m. Such a full-stokes polarimetry features an average absolute …
and high integration. However, previous works suffer from low energy efficiency, limited
restrictions on choice of target polarization states, or inability to focus light. Here, by inverse
design, we numerically demonstrate a multi-foci metalens-based polarimetry that can
simultaneously separate and focus the four free-chosen elliptical polarization states at the
wavelength of 10.6\mu m. Such a full-stokes polarimetry features an average absolute …
Imaging polarimetry based on dielectric metasurface is well-known for its ultra-compactness and high integration. However, previous works suffer from low energy efficiency, limited restrictions on choice of target polarization states, or inability to focus light. Here, by inverse design, we numerically demonstrate a multi-foci metalens-based polarimetry that can simultaneously separate and focus the four free-chosen elliptical polarization states at the wavelength of 10.6 \mu m. Such a full-stokes polarimetry features an average absolute efficiency up to 54.63%, and an average relative error as low as 0.00137%. This spatial-multiplexing-free full stokes polarimetry exceeds the theoretical maximum efficiency of traditional polarization-filtering counterparts, and resolves the restriction faced by the orthogonal polarization-multiplexed method.
arxiv.org