High signal to noise absorption imaging of alkali atoms at moderate magnetic fields
We present an improved scheme for absorption imaging of alkali atoms at moderate magnetic fields, where the excited state is well in the Paschen-Back regime, but the ground state hyperfine manifold is not. It utilizes four atomic levels to obtain an approximately closed optical cycle. With the resul...
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| Main Authors: | , , , , , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
16 February 2021
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| In: |
Review of scientific instruments
Year: 2021, Volume: 92, Issue: 2, Pages: ? |
| ISSN: | 1089-7623 |
| DOI: | 10.1063/5.0040677 |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1063/5.0040677 Verlag, lizenzpflichtig, Volltext: https://aip.scitation.org/doi/abs/10.1063/5.0040677 
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| Author Notes: | Maurus Hans, Finn Schmutte, Celia Viermann, Nikolas Liebster, Marius Sparn, Markus K. Oberthaler, Helmut Strobel |
| Summary: | We present an improved scheme for absorption imaging of alkali atoms at moderate magnetic fields, where the excited state is well in the Paschen-Back regime, but the ground state hyperfine manifold is not. It utilizes four atomic levels to obtain an approximately closed optical cycle. With the resulting absorption of the corresponding two laser frequencies, we extract the atomic column density of a 39K Bose-Einstein condensate. The scheme can be readily applied to all other alkali-like species. |
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| Item Description: | Gesehen am 14.04.2021 |
| Physical Description: | Online Resource |
| ISSN: | 1089-7623 |
| DOI: | 10.1063/5.0040677 |