Article https://doi.org/10.1038/s41467-023-42944-6 Disordered metasurface enabled single-shot full-Stokes polarization imaging leveraging weak dichroism Qingbin Fan 1,2,3,6, Weizhu Xu 1,2,6, Xuemei Hu1,2,6, Wenqi Zhu 4,5,6, Tao Yue 1,2 , Feng Yan 1,2 , Peicheng Lin1,3, Lu Chen4,5, Junyeob Song4, Henri J. Lezec 4, Amit Agrawal 4, Yanqing Lu 1,2,3 & Ting Xu 1,2,3 Polarization, one of the fundamental properties of light, is critical for certain imaging applications because it captures information from the scene that
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Disordered metasurface enabled single-shot full-Stokes polarization imaging leveraging weak dichroism
Qingbin Fan, Weizhu Xu, Xuemei Hu, Wenqi Zhu, Tao Yue, Feng Yan, Peicheng Lin, Lu Chen, Junyeob Song, Henri J. Lezec, Amit Agrawal, Yanqing Lu, Ting Xu
Research context
Polarization, one of the fundamental properties of light, is critical for certain imaging applications because it captures information from the scene that cannot directly be recorded by traditional intensity cameras. Currently, mainstream approaches for polarization imaging rely on strong dichroism of birefringent crystals or artificially fabricated structures that exhibit a high diattenuation typically exceeding 99%, which corresponds to a polarization extinction ratio (PER) >~100. This not only limits the transmission efficiency of light, but also makes them either offer narrow operational bandwidth or be non-responsive to the circular polarization. Here, we demonstrate a single-shot full-Stokes polarization camera incorporating a disordered metasurface array with weak dichroism. The diattenuation of the metasurface array is ~65%, which corresponds to a PER of ~2. Within the framework of compressed sensing, the proposed disordered metasurface array serves as an efficient sensing matrix. By incorporating a mask-aware reconstruction algorithm, the signal can be accurately recovered with a high probability. In our experiments, the proposed approach exhibits high-accuracy full-Stokes
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Qingbin Fan, Weizhu Xu, Xuemei Hu, Wenqi Zhu, Tao Yue, Feng Yan, Peicheng Lin, Lu Chen, Junyeob Song, Henri J. Lezec, Amit Agrawal, Yanqing Lu, Ting Xu. Disordered metasurface enabled single-shot full-Stokes polarization imaging leveraging weak dichroism. Nature Communications (2023). https://doi.org/10.1038/s41467-023-42944-6
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