Metasurface-assisted multimodal quantum imaging
Traditional quantum imaging is featured by remarkable sensitivity and signal-to-noise ratio, but limited by bulkiness and static function (either phase contrast imaging or edge detection). Our report synergizes a polarization-entangled source with a metasurface consisting of various sophisticatedly engineered spatial frequency segments. By tuning polarization, we demonstrate multiple "on"-state quantum imaging modes, enabling flexible switching between phase contrast, edge, and arbitrary superimposed imaging mode. Furthermore, the "off"-state, which characterizes the background noise, enables self-calibration of the system by subtracting this noise in "on"-state modes, resulting in self-enhanced edge detection. Our approach performs phase contrast imaging with a phase difference of π/4 present in the target object, and edge imaging capable of detecting tiny (radius about 2 μm) defects, maintaining high image contrast (phase contrast of 0.726, and enhanced edge contrast of 0.902). Our results provide insights into constructive duet between quantum imaging and metaoptics.
Authors
- Boyan Fu (ORCID: https://orcid.org/0000-0001-6428-8080)
- Shuming Wang (ORCID: https://orcid.org/0000-0002-0191-407X)
- Tianyue Li (ORCID: https://orcid.org/0000-0001-7682-7483)
- Xiaoshu Zhu (ORCID: https://orcid.org/0000-0002-2909-5926)
- Juanzi He
- Qianhui Bi
- Zhenlin Wang (ORCID: https://orcid.org/0000-0003-0691-0868)
- Qianjin Wang (ORCID: https://orcid.org/0000-0003-1474-0918)
- Cheng‐Wei Qiu (ORCID: https://orcid.org/0000-0002-6605-500X)
- Jian Chen (ORCID: https://orcid.org/0000-0001-6770-7383)
- Xingyu Liu (ORCID: https://orcid.org/0000-0002-1891-1326)
- Shining N. Zhu (ORCID: https://orcid.org/0000-0002-3472-6497)
- Yifan Zhou (ORCID: https://orcid.org/0000-0002-1433-2247)
- Xiaojing Feng
- Xinyang Feng
- Jun Liu (ORCID: https://orcid.org/0009-0003-2743-0940)
- Zhou Zhou (ORCID: https://orcid.org/0009-0000-8405-541X)
Institutions
- University of Shanghai for Science and Technology (CN)
- National University of Singapore (SG)
- Nanjing Institute of Mechatronic Technology (CN)
- Collaborative Innovation Center of Advanced Microstructures (CN)
- Nanjing University (CN)
Publication Details
- Journal
- Proceedings of the National Academy of Sciences
- Published
- 2025-05-02
- DOI
- https://doi.org/10.1073/pnas.2500760122
- Citations
- 5
- Primary Topic
- Metamaterials and Metasurfaces Applications
- Type
- article
- Field-Weighted Citation Impact
- 2.14
Funders
- National Research Foundation Singapore
- National Natural Science Foundation of China
- Natural Science Foundation of Jiangsu Province
- Jiangsu Provincial Key Research and Development Program