Multiscale aperture synthesis imager
Fuente:
arXiv
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| Auteurs principaux: | , , , , , , , , , |
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866911289247268864 |
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| author | Wang, Ruihai Zhao, Qianhao Wang, Tianbo Modarelli, Mitchell Vouras, Peter Ma, Zikun Hong, Zhixuan Hoshino, Kazunori Brady, David Zheng, Guoan |
| author_facet | Wang, Ruihai Zhao, Qianhao Wang, Tianbo Modarelli, Mitchell Vouras, Peter Ma, Zikun Hong, Zhixuan Hoshino, Kazunori Brady, David Zheng, Guoan |
| contents | Synthetic aperture imaging has enabled breakthrough observations from radar to astronomy. However, optical implementation remains challenging due to stringent wavefield synchronization requirements among multiple receivers. Here we present the multiscale aperture synthesis imager (MASI), which utilizes parallelism to break complex optical challenges into tractable sub-problems. MASI employs a distributed array of coded sensors that operate independently yet coherently to surpass the diffraction limit of single receiver. It combines the propagated wavefields from individual sensors through a computational phase synchronization scheme, eliminating the need for overlapping measurement regions to establish phase coherence. Light diffraction in MASI naturally expands the imaging field, generating phase-contrast visualizations that are substantially larger than sensor dimensions. Without using lenses, MASI resolves sub-micron features at ultralong working distances and reconstructs 3D shapes over centimeter-scale fields. MASI transforms the intractable optical synchronization problem into a computational one, enabling practical deployment of scalable synthetic aperture systems at optical wavelengths. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2511_06075 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Multiscale aperture synthesis imager Wang, Ruihai Zhao, Qianhao Wang, Tianbo Modarelli, Mitchell Vouras, Peter Ma, Zikun Hong, Zhixuan Hoshino, Kazunori Brady, David Zheng, Guoan Optics Image and Video Processing Synthetic aperture imaging has enabled breakthrough observations from radar to astronomy. However, optical implementation remains challenging due to stringent wavefield synchronization requirements among multiple receivers. Here we present the multiscale aperture synthesis imager (MASI), which utilizes parallelism to break complex optical challenges into tractable sub-problems. MASI employs a distributed array of coded sensors that operate independently yet coherently to surpass the diffraction limit of single receiver. It combines the propagated wavefields from individual sensors through a computational phase synchronization scheme, eliminating the need for overlapping measurement regions to establish phase coherence. Light diffraction in MASI naturally expands the imaging field, generating phase-contrast visualizations that are substantially larger than sensor dimensions. Without using lenses, MASI resolves sub-micron features at ultralong working distances and reconstructs 3D shapes over centimeter-scale fields. MASI transforms the intractable optical synchronization problem into a computational one, enabling practical deployment of scalable synthetic aperture systems at optical wavelengths. |
| title | Multiscale aperture synthesis imager |
| topic | Optics Image and Video Processing |
| url | https://arxiv.org/abs/2511.06075 |