Super-resolution imaging based on active optical intensity interferometry
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arXiv
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| Auteurs principaux: | , , , , , , , , |
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| Format: | Preprint |
| Publié: |
2024
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| _version_ | 1866914768448651264 |
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| author | Liu, Lu-Chuan Wu, Cheng Li, Wei Chen, Yu-Ao Wilczek, Frank Shao, Xiao-Peng Xu, Feihu Zhang, Qiang Pan, Jian-Wei |
| author_facet | Liu, Lu-Chuan Wu, Cheng Li, Wei Chen, Yu-Ao Wilczek, Frank Shao, Xiao-Peng Xu, Feihu Zhang, Qiang Pan, Jian-Wei |
| contents | Long baseline diffraction-limited optical aperture synthesis technology by interferometry plays an important role in scientific study and practical application. In contrast to amplitude (phase) interferometry, intensity interferometry -- which exploits the quantum nature of light to measure the photon bunching effect in thermal light -- is robust against atmospheric turbulence and optical defects. However, a thermal light source typically has a significant divergence angle and a low average photon number per mode, forestalling the applicability over long ranges. Here, we propose and demonstrate active intensity interferometry for super-resolution imaging over the kilometer range. Our scheme exploits phase-independent multiple laser emitters to produce the thermal illumination and uses an elaborate computational algorithm to reconstruct the image. In outdoor environments, we image two-dimension millimeter-level targets over 1.36 kilometers at a resolution of 14 times the diffraction limit of a single telescope. High-resolution optical imaging and sensing are anticipated by applying long-baseline active intensity interferometry in general branches of physics and metrology. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2404_15685 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Super-resolution imaging based on active optical intensity interferometry Liu, Lu-Chuan Wu, Cheng Li, Wei Chen, Yu-Ao Wilczek, Frank Shao, Xiao-Peng Xu, Feihu Zhang, Qiang Pan, Jian-Wei Optics Quantum Physics Long baseline diffraction-limited optical aperture synthesis technology by interferometry plays an important role in scientific study and practical application. In contrast to amplitude (phase) interferometry, intensity interferometry -- which exploits the quantum nature of light to measure the photon bunching effect in thermal light -- is robust against atmospheric turbulence and optical defects. However, a thermal light source typically has a significant divergence angle and a low average photon number per mode, forestalling the applicability over long ranges. Here, we propose and demonstrate active intensity interferometry for super-resolution imaging over the kilometer range. Our scheme exploits phase-independent multiple laser emitters to produce the thermal illumination and uses an elaborate computational algorithm to reconstruct the image. In outdoor environments, we image two-dimension millimeter-level targets over 1.36 kilometers at a resolution of 14 times the diffraction limit of a single telescope. High-resolution optical imaging and sensing are anticipated by applying long-baseline active intensity interferometry in general branches of physics and metrology. |
| title | Super-resolution imaging based on active optical intensity interferometry |
| topic | Optics Quantum Physics |
| url | https://arxiv.org/abs/2404.15685 |