Faraday-Ramsey rotation measurement in a thin cell as an analogy to an atomic beam
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arXiv
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| Autores principales: | , , , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| _version_ | 1866911007953125376 |
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| author | Dikopoltsev, Mark Talker, Eliran Barash, Yefim Mazurski, Noa Levy, Uriel |
| author_facet | Dikopoltsev, Mark Talker, Eliran Barash, Yefim Mazurski, Noa Levy, Uriel |
| contents | Atomic beams are powerful tools for measuring spin coherence in hot vapors but require bulky setups, limiting device miniaturization. We demonstrate that micron-thin vapor cells can mimic atomic beam behavior by exploiting geometry-dependent velocity filtering. In a 5 μm rubidium cell, coherence is preserved for atoms moving parallel to the cell walls, enabling observation of the Faraday-Ramsey effect without buffer gas or anti-relaxation coatings. Using a spatially displaced pump-probe scheme and magnetic field scanning, we achieve clear Ramsey fringes and validate our model experimentally. This technique offers a compact alternative to atomic beam systems, supporting scalable sensors and frequency standards. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_06116 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Faraday-Ramsey rotation measurement in a thin cell as an analogy to an atomic beam Dikopoltsev, Mark Talker, Eliran Barash, Yefim Mazurski, Noa Levy, Uriel Quantum Physics Atomic beams are powerful tools for measuring spin coherence in hot vapors but require bulky setups, limiting device miniaturization. We demonstrate that micron-thin vapor cells can mimic atomic beam behavior by exploiting geometry-dependent velocity filtering. In a 5 μm rubidium cell, coherence is preserved for atoms moving parallel to the cell walls, enabling observation of the Faraday-Ramsey effect without buffer gas or anti-relaxation coatings. Using a spatially displaced pump-probe scheme and magnetic field scanning, we achieve clear Ramsey fringes and validate our model experimentally. This technique offers a compact alternative to atomic beam systems, supporting scalable sensors and frequency standards. |
| title | Faraday-Ramsey rotation measurement in a thin cell as an analogy to an atomic beam |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2410.06116 |