Coherent terahertz field tomographic imaging in warm Rydberg vapors
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| Main Authors: | , , , , |
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| Format: | Preprint |
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2026
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| _version_ | 1866911608453726208 |
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| author | Nowosielski, Jan Jastrzębski, Marcin Wasilewski, Wojciech Mazelanik, Mateusz Parniak, Michał |
| author_facet | Nowosielski, Jan Jastrzębski, Marcin Wasilewski, Wojciech Mazelanik, Mateusz Parniak, Michał |
| contents | Rydberg atom-based sensors have emerged as highly sensitive tools for terahertz (THz) metrology, yet most current imaging techniques discard crucial phase information. In this Letter, we present a coherent THz-to-optical conversion scheme in warm Rb vapor that enables complex-amplitude field imaging. By manipulating the phase-matching conditions via an adjustable interference pattern of optical probe beams, we demonstrate the ability to perform tomographic reconstruction of the THz field distribution. We experimentally validate the spatial resolution and phase-sensitivity of the system by resolving sub-centimeter features and identifying incident angles of arrival. Our results establish a robust framework for phase-resolved THz imaging and holography using atomic vapors at room temperature. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2604_18440 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Coherent terahertz field tomographic imaging in warm Rydberg vapors Nowosielski, Jan Jastrzębski, Marcin Wasilewski, Wojciech Mazelanik, Mateusz Parniak, Michał Atomic Physics Optics Rydberg atom-based sensors have emerged as highly sensitive tools for terahertz (THz) metrology, yet most current imaging techniques discard crucial phase information. In this Letter, we present a coherent THz-to-optical conversion scheme in warm Rb vapor that enables complex-amplitude field imaging. By manipulating the phase-matching conditions via an adjustable interference pattern of optical probe beams, we demonstrate the ability to perform tomographic reconstruction of the THz field distribution. We experimentally validate the spatial resolution and phase-sensitivity of the system by resolving sub-centimeter features and identifying incident angles of arrival. Our results establish a robust framework for phase-resolved THz imaging and holography using atomic vapors at room temperature. |
| title | Coherent terahertz field tomographic imaging in warm Rydberg vapors |
| topic | Atomic Physics Optics |
| url | https://arxiv.org/abs/2604.18440 |