Complex-valued three-dimensional atomic spectroscopy with Gaussian-assisted inline holography
When a laser-cooled atomic sample is optically excited, the envelope of coherent forward scattering can often be decomposed into a few complex Gaussian profiles. The convenience of Gaussian propagation helps address key challenges in digital holography. In this paper, we develop a Gaussian-decomposi...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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American Physical Society
2025-01-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.7.013054 |
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| _version_ | 1832096205468860416 |
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| author | Xing Huang Yuzhuo Wang Jian Zhao Saijun Wu |
| author_facet | Xing Huang Yuzhuo Wang Jian Zhao Saijun Wu |
| author_sort | Xing Huang |
| collection | DOAJ |
| description | When a laser-cooled atomic sample is optically excited, the envelope of coherent forward scattering can often be decomposed into a few complex Gaussian profiles. The convenience of Gaussian propagation helps address key challenges in digital holography. In this paper, we develop a Gaussian-decomposition-assisted approach to inline holography for single-shot, simultaneous measurements of absorption and phase-shift profiles of small atomic samples sparsely distributed in three dimensions. The samples' axial positions are resolved with micrometer resolution and their spectroscopy are extracted from complex-valued images recorded at various probe frequencies. The phase-angle readout is not only robust against transition saturation but also insensitive to atom-number and optical-pumping-induced interaction-strength fluctuations. Benefiting from such features, we achieve hundred-kHz-level single-shot resolution to the transition frequency of a ^{87}Rb D_{2} line, with merely hundreds of atoms. We further demonstrate single-shot three-dimensional field sensing by measuring local light shifts to the atomic array with micrometer spatial resolution. |
| format | Article |
| id | doaj-art-e488ef5b5e6b40d6ae6d4604211f8524 |
| institution | Kabale University |
| issn | 2643-1564 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj-art-e488ef5b5e6b40d6ae6d4604211f85242025-02-05T16:05:36ZengAmerican Physical SocietyPhysical Review Research2643-15642025-01-017101305410.1103/PhysRevResearch.7.013054Complex-valued three-dimensional atomic spectroscopy with Gaussian-assisted inline holographyXing HuangYuzhuo WangJian ZhaoSaijun WuWhen a laser-cooled atomic sample is optically excited, the envelope of coherent forward scattering can often be decomposed into a few complex Gaussian profiles. The convenience of Gaussian propagation helps address key challenges in digital holography. In this paper, we develop a Gaussian-decomposition-assisted approach to inline holography for single-shot, simultaneous measurements of absorption and phase-shift profiles of small atomic samples sparsely distributed in three dimensions. The samples' axial positions are resolved with micrometer resolution and their spectroscopy are extracted from complex-valued images recorded at various probe frequencies. The phase-angle readout is not only robust against transition saturation but also insensitive to atom-number and optical-pumping-induced interaction-strength fluctuations. Benefiting from such features, we achieve hundred-kHz-level single-shot resolution to the transition frequency of a ^{87}Rb D_{2} line, with merely hundreds of atoms. We further demonstrate single-shot three-dimensional field sensing by measuring local light shifts to the atomic array with micrometer spatial resolution.http://doi.org/10.1103/PhysRevResearch.7.013054 |
| spellingShingle | Xing Huang Yuzhuo Wang Jian Zhao Saijun Wu Complex-valued three-dimensional atomic spectroscopy with Gaussian-assisted inline holography Physical Review Research |
| title | Complex-valued three-dimensional atomic spectroscopy with Gaussian-assisted inline holography |
| title_full | Complex-valued three-dimensional atomic spectroscopy with Gaussian-assisted inline holography |
| title_fullStr | Complex-valued three-dimensional atomic spectroscopy with Gaussian-assisted inline holography |
| title_full_unstemmed | Complex-valued three-dimensional atomic spectroscopy with Gaussian-assisted inline holography |
| title_short | Complex-valued three-dimensional atomic spectroscopy with Gaussian-assisted inline holography |
| title_sort | complex valued three dimensional atomic spectroscopy with gaussian assisted inline holography |
| url | http://doi.org/10.1103/PhysRevResearch.7.013054 |
| work_keys_str_mv | AT xinghuang complexvaluedthreedimensionalatomicspectroscopywithgaussianassistedinlineholography AT yuzhuowang complexvaluedthreedimensionalatomicspectroscopywithgaussianassistedinlineholography AT jianzhao complexvaluedthreedimensionalatomicspectroscopywithgaussianassistedinlineholography AT saijunwu complexvaluedthreedimensionalatomicspectroscopywithgaussianassistedinlineholography |