Dual-independent vectorial nano-printing and holography based on orthogonal polarized synthesis metasurface
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Metasurfaces have revolutionized the field of photonics by enabling subwavelength light manipulation, yet existing strategies are still facing inherent limitations in achieving concurrent polarization, amplitude and phase control for nano-printing and high-security optical encryption. Herein, we propose and experimentally demonstrate a metasurface strategy enabling dual-independent vectorial nano-printing and holographic display via interferometric light-field engineering. This design achieves one continuous grayscale pattern modulation in the near-field through Malus' law integration, while simultaneously reconstructing distinct holographic images in orthogonal polarization channels within the far-field. Furthermore, polarization-encoded complex-amplitude field for vectoral grayscale pattern modulation and holographic encryption are schemed based on synthesis of orthogonal field engineering in intermedia polarization state. Such multifunctional capabilities are realized through an all-dielectric metasurface that enables simultaneous independent control of three output channels, combined with a collaborative optimization algorithm. Our work fundamentally advances metasurface-enabled optical encryption by establishing a paradigm of physical-layer security through electromagnetic domain decoupling for anti-counterfeiting and lithography applications.