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| Autores principales: | , , , , , |
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| Formato: | Preprint |
| Publicado: |
2022
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| Acceso en línea: | https://arxiv.org/abs/2205.13899 |
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| _version_ | 1866916338950209536 |
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| author | Bianchet, Lorena C. Alves, Natalia Zarraoa, Laura Lamich, Tomas Prakash, Vindhiya Mitchell, Morgan W. |
| author_facet | Bianchet, Lorena C. Alves, Natalia Zarraoa, Laura Lamich, Tomas Prakash, Vindhiya Mitchell, Morgan W. |
| contents | We present precise, sub-wavelength optical intensity measurement using a single trapped $^{87}$Rb atom as a sensor. The intensity is measured by the scalar ac Stark shift it produces on the $F=1 \rightarrow F'=2$ hyperfine transition of the D$_{2}$ line, chosen for its $F' = F+1$ structure and very small tensor polarizability. To boost signal and reduce measurement-induced perturbations, we use a quantum jump spectroscopy technique in which a single absorbed photon on a transition of interest induces the scattering of hundreds of photons on a bright closed transition. The method greatly reduces systematic effects associated with the atomic state, optical polarization, probe power, and atom heating, and gives the atomic temperature as a second spectroscopic observable. We demonstrate the method by measuring the intensity at the focus of an optical tweezer. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2205_13899 |
| institution | arXiv |
| publishDate | 2022 |
| record_format | arxiv |
| spellingShingle | Precise, super-resolving intensity measurement by quantum jump spectroscopy of a single neutral atom Bianchet, Lorena C. Alves, Natalia Zarraoa, Laura Lamich, Tomas Prakash, Vindhiya Mitchell, Morgan W. Atomic Physics We present precise, sub-wavelength optical intensity measurement using a single trapped $^{87}$Rb atom as a sensor. The intensity is measured by the scalar ac Stark shift it produces on the $F=1 \rightarrow F'=2$ hyperfine transition of the D$_{2}$ line, chosen for its $F' = F+1$ structure and very small tensor polarizability. To boost signal and reduce measurement-induced perturbations, we use a quantum jump spectroscopy technique in which a single absorbed photon on a transition of interest induces the scattering of hundreds of photons on a bright closed transition. The method greatly reduces systematic effects associated with the atomic state, optical polarization, probe power, and atom heating, and gives the atomic temperature as a second spectroscopic observable. We demonstrate the method by measuring the intensity at the focus of an optical tweezer. |
| title | Precise, super-resolving intensity measurement by quantum jump spectroscopy of a single neutral atom |
| topic | Atomic Physics |
| url | https://arxiv.org/abs/2205.13899 |