Coherent Two-Photon Atmospheric Lidar Based on Up-Conversion Quantum Erasure
The Hong-Ou-Mandel (HOM) effect, also called two-photon interference, which is pivotal in quantum information processing, serves as the foundation for our coherent two-photon wind detection method, achieving time-frequency discrimination. Our method capitalizes on the complete erasure of phase and color distinctions with up-conversion detectors, allowing for the observation of HOM interference among independently sourced photons without necessitating delay tuning or active synchronization. The integration of quantum erasure enhances the bandwidth in both space-time and frequency domains, paving the way for ultrafast, continuous velocity detection up to tens of km/s. The demonstration uses just 14% pulse energy of previous levels, enabling a wind detection range up to 16 km, marking a quantum leap in remote sensing capabilities.
Authors
- Xianghui Xue (ORCID: https://orcid.org/0000-0002-4541-9900)
- Ruocan Zhao (ORCID: https://orcid.org/0000-0003-4852-2759)
- Tingdi Chen (ORCID: https://orcid.org/0000-0002-8399-4084)
- Kexin Yang (ORCID: https://orcid.org/0000-0003-2333-2406)
- Yudie Li
- Chong Wang (ORCID: https://orcid.org/0000-0002-8763-465X)
- X. Dou
- Luoyuan Qu
Institutions
- University of Science and Technology of China (CN)
- Hefei University (CN)
Publication Details
- Journal
- ACS Photonics
- Published
- 2024-08-16
- DOI
- https://doi.org/10.1021/acsphotonics.4c00302
- Citations
- 9
- Primary Topic
- Advanced Optical Sensing Technologies
- Type
- article
- Field-Weighted Citation Impact
- 4.56
Funders
- National Natural Science Foundation of China
- Natural Science Foundation of Anhui Province
- National Key Research and Development Program of China