Related Experiment Video
Updated: Jun 10, 2026
08:51
Non-invasive 3D-Visualization with Sub-micron Resolution Using Synchrotron-X-ray-tomography
Published on: May 27, 2008
Full-color 3D visualization with Janus metafiber
Haotian Xu1, Tianyue Li2, Haotian Ding1
1National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, School of Physics, Nanjing University, Nanjing, China.
Nature Communications
|June 8, 2026
Summary
This study introduces the Janus metafiber system, a novel fiber imaging tool. It achieves both 2D imaging and 3D depth sensing simultaneously, enhancing applications in diagnostics and inspection.
Area of Science:
- Optics and Photonics
- Biomedical Imaging
- Metasurface Technology
Background:
- Fiber endoscopic imaging systems offer high precision but struggle with depth and angle information.
- Conventional dual-function imaging requires complex optical components.
- Metasurfaces offer novel optical functionalities integrated with existing technologies.
Purpose of the Study:
- To develop a single, integrated system for simultaneous 2D imaging and 3D depth sensing using fiber optics.
- To overcome the limitations of traditional fiber imaging systems in acquiring depth information.
- To leverage metasurface technology for enhanced fiber imaging capabilities.
Main Methods:
- Proposed a Janus metafiber system integrating metasurfaces with fiber bundles.
- Utilized a single round-trip optical path with forward and reverse switching.
- Employed time-division acquisition with single-wavelength array scanning and polychromatic illumination for noise resilience.
- Implemented interpolation optimization for 3D depth imaging.
Main Results:
- Simultaneously achieved passive 2D imaging in the visible spectrum and active 3D depth sensing.
- Demonstrated high imaging fidelity and noise resilience.
- Verified a 60° field of view and a divergence angle less than 2° in 3D depth imaging.
- Showcased enhanced broadband depth-resolved synthetic imaging and edge detection.
Conclusions:
- The Janus metafiber system provides a dual-function imaging solution overcoming limitations of conventional fiber endoscopes.
- The system exhibits high performance, including imaging fidelity, noise resilience, and accurate depth sensing.
- This technology holds significant potential for real-time biomedical diagnostics, LiDAR, and industrial inspection.
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