Background-free detection of trapped ions
We demonstrate a Doppler cooling and detection scheme for ions with low-lying D levels which almost entirely suppresses scattered laser light background, while retaining a high fluorescence signal and efficient cooling. We cool a single ion with a laser on the 2S1/2 to 2P1/2 transition as usual, but...
| Autores principales: | , , , , , , , , |
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| Formato: | Journal article |
| Lenguaje: | English |
| Publicado: |
2011
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| _version_ | 1826292462056898560 |
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| author | Linke, N Allcock, D Szwer, D Ballance, C Harty, T Janacek, H Stacey, D Steane, A Lucas, D |
| author_facet | Linke, N Allcock, D Szwer, D Ballance, C Harty, T Janacek, H Stacey, D Steane, A Lucas, D |
| author_sort | Linke, N |
| collection | OXFORD |
| description | We demonstrate a Doppler cooling and detection scheme for ions with low-lying D levels which almost entirely suppresses scattered laser light background, while retaining a high fluorescence signal and efficient cooling. We cool a single ion with a laser on the 2S1/2 to 2P1/2 transition as usual, but repump via the 2P3/2 level. By filtering out light on the cooling transition and detecting only the fluorescence from the 2P_3/2 to 2S1/2 decays, we suppress the scattered laser light background count rate to 1 per second while maintaining a signal of 29000 per second with moderate saturation of the cooling transition. This scheme will be particularly useful for experiments where ions are trapped in close proximity to surfaces, such as the trap electrodes in microfabricated ion traps, which leads to high background scatter from the cooling beam. |
| first_indexed | 2024-03-07T03:15:04Z |
| format | Journal article |
| id | oxford-uuid:b5849a55-f2c8-4cef-a27c-0dc37274ccd5 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T03:15:04Z |
| publishDate | 2011 |
| record_format | dspace |
| spelling | oxford-uuid:b5849a55-f2c8-4cef-a27c-0dc37274ccd52022-03-27T04:34:00ZBackground-free detection of trapped ionsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:b5849a55-f2c8-4cef-a27c-0dc37274ccd5EnglishSymplectic Elements at Oxford2011Linke, NAllcock, DSzwer, DBallance, CHarty, TJanacek, HStacey, DSteane, ALucas, DWe demonstrate a Doppler cooling and detection scheme for ions with low-lying D levels which almost entirely suppresses scattered laser light background, while retaining a high fluorescence signal and efficient cooling. We cool a single ion with a laser on the 2S1/2 to 2P1/2 transition as usual, but repump via the 2P3/2 level. By filtering out light on the cooling transition and detecting only the fluorescence from the 2P_3/2 to 2S1/2 decays, we suppress the scattered laser light background count rate to 1 per second while maintaining a signal of 29000 per second with moderate saturation of the cooling transition. This scheme will be particularly useful for experiments where ions are trapped in close proximity to surfaces, such as the trap electrodes in microfabricated ion traps, which leads to high background scatter from the cooling beam. |
| spellingShingle | Linke, N Allcock, D Szwer, D Ballance, C Harty, T Janacek, H Stacey, D Steane, A Lucas, D Background-free detection of trapped ions |
| title | Background-free detection of trapped ions |
| title_full | Background-free detection of trapped ions |
| title_fullStr | Background-free detection of trapped ions |
| title_full_unstemmed | Background-free detection of trapped ions |
| title_short | Background-free detection of trapped ions |
| title_sort | background free detection of trapped ions |
| work_keys_str_mv | AT linken backgroundfreedetectionoftrappedions AT allcockd backgroundfreedetectionoftrappedions AT szwerd backgroundfreedetectionoftrappedions AT ballancec backgroundfreedetectionoftrappedions AT hartyt backgroundfreedetectionoftrappedions AT janacekh backgroundfreedetectionoftrappedions AT staceyd backgroundfreedetectionoftrappedions AT steanea backgroundfreedetectionoftrappedions AT lucasd backgroundfreedetectionoftrappedions |