A 160°×160°Dynamic Holographic Meta-Projector

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Abstract

Achieving real-time, reconfigurable wavefront control with dynamic metasurfaces remains a key unsolved challenge in photonics, fundamentally limiting their use in adaptive imaging and holographic displays. Conventional liquid-crystal spatial light modulators (SLMs) enable dynamic photonics but suffer from narrow fields of view (FOV) due to their micron-scale pixel pitch, constraining immersive three-dimensional visualization. Here, we present a pixel-interpolation-assisted holographic meta-projector that merges the dynamic tunability of SLMs with the subwavelength precision of metasurfaces. By integrating multiple metasurface nano-pixels within each SLM pixel and implementing a smart k-space distortion correction strategy for ultra-wide angles, the system achieves high-fidelity, real-time holographic video reconstruction with a FOV of 160°×160°—the widest ever demonstrated for dynamic holography—at 60 Hz refresh rate. This system represents the state-of-the-art near-full-screen holographic dynamic display, establishing a scalable pathway toward wide-FOV, high-speed virtual/augmented reality and adaptive optical systems.

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