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<p>Polarization encodes vectorial optical information invisible to conventional intensity-only sensors but critical for advanced artificial vision. Implementing in-sensor computing along the polarization dimension, however, remains challenging due to the lack of reconfigurable array-level hardware. Here we demonstrate self-reconfigurable polarization sensor arrays built from epitaxial van der Waals heterostructures of two-dimensional tellurium and ReS₂ with orthogonal in-plane anisotropies. Light-driven interfacial carrier transfer and trapping synergistically produce a bipolar photoresponse, while perpendicular lattice alignment yields opposite polarization sensitivities in the two response branches, enabling all-optical reconfiguration without electrical bias. Integrated into in-sensor architectures, these arrays process time-resolved, multidimensional optical information with high fidelity. Dynamic vision tasks achieve enhanced accuracy (&gt;95%), demonstrated in applications ranging from autonomous driving to intelligent medicine. Our results establish self-reconfigurable polarization arrays as a versatile platform for high-dimensional in-sensor photonic computing, offering a path towards efficient artificial vision in complex real-world environments.</p>

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Self-reconfigurable polarization perception in dual-anisotropy heterostructures for high-dimensional in-sensor computing

  • 期刊论文

  • 发表日期：

    2026年4月14日

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  • Wenxuan Zhu,
  • Changhwan Kim,
  • Ruofan Zhang,
  • Mingchun Lu,
  • Namwook Hur,
  • Hanbin Cho,
  • Jihyun Kim,
  • Jiacheng Sun,
  • Joohoon Kang,
  • Junchi Yan,
  • Yuan Cheng,
  • Joonki Suh

摘要

Polarization encodes vectorial optical information invisible to conventional intensity-only sensors but critical for advanced artificial vision. Implementing in-sensor computing along the polarization dimension, however, remains challenging due to the lack of reconfigurable array-level hardware. Here we demonstrate self-reconfigurable polarization sensor arrays built from epitaxial van der Waals heterostructures of two-dimensional tellurium and ReS₂ with orthogonal in-plane anisotropies. Light-driven interfacial carrier transfer and trapping synergistically produce a bipolar photoresponse, while perpendicular lattice alignment yields opposite polarization sensitivities in the two response branches, enabling all-optical reconfiguration without electrical bias. Integrated into in-sensor architectures, these arrays process time-resolved, multidimensional optical information with high fidelity. Dynamic vision tasks achieve enhanced accuracy (>95%), demonstrated in applications ranging from autonomous driving to intelligent medicine. Our results establish self-reconfigurable polarization arrays as a versatile platform for high-dimensional in-sensor photonic computing, offering a path towards efficient artificial vision in complex real-world environments.