Full-colour 3D holographic augmented-reality displays with metasurface waveguides

Full-colour 3D holographic augmented-reality displays with metasurface waveguides

23 May 2024 | Manu Gopakumar, Gun-Yeal Lee, Suyeon Choi, Brian Chao, Yifan Peng, Jonghyun Kim & Gordon Wetzstein
The paper introduces a novel holographic augmented-reality (AR) system that overcomes the limitations of traditional AR displays, such as bulky projection optics and poor 3D depth cues. The system combines inverse-designed full-color metasurface gratings, a compact dispersion-compensating waveguide geometry, and AI-driven holography algorithms to present vibrant, full-color, 3D AR content in a compact device form factor. The metasurface waveguide is co-designed with the waveguide geometry to eliminate the need for bulky collimation optics, and an innovative image formation model combines a physically accurate waveguide model with learned components calibrated using camera feedback. This approach significantly advances the creation of visually compelling 3D AR experiences in wearable devices. The system achieves high-quality, full-color multiplane 3D holographic images using a single optical-see-through (OST) AR waveguide, providing unprecedented image quality in a compact form factor. The paper also discusses the fabrication process, waveguide propagation model, and experimental results, demonstrating the system's superior performance compared to existing waveguide designs.The paper introduces a novel holographic augmented-reality (AR) system that overcomes the limitations of traditional AR displays, such as bulky projection optics and poor 3D depth cues. The system combines inverse-designed full-color metasurface gratings, a compact dispersion-compensating waveguide geometry, and AI-driven holography algorithms to present vibrant, full-color, 3D AR content in a compact device form factor. The metasurface waveguide is co-designed with the waveguide geometry to eliminate the need for bulky collimation optics, and an innovative image formation model combines a physically accurate waveguide model with learned components calibrated using camera feedback. This approach significantly advances the creation of visually compelling 3D AR experiences in wearable devices. The system achieves high-quality, full-color multiplane 3D holographic images using a single optical-see-through (OST) AR waveguide, providing unprecedented image quality in a compact form factor. The paper also discusses the fabrication process, waveguide propagation model, and experimental results, demonstrating the system's superior performance compared to existing waveguide designs.
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