Resonance coupling induced enhancement of indirect transverse cooling in a laser-cooled ion beam
We report the first observation of indirect resonantly enhanced transverse laser cooling of a bunched, stored ion beam of 40 keV ^{24}Mg^{+}. The longitudinal velocity distribution and the horizontal beam size of the laser-cooled ^{24}Mg^{+} ion beam with 280 nm laser light were simultaneously obser...
| Main Authors: | , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2012-11-01
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| Series: | Physical Review Special Topics. Accelerators and Beams |
| Online Access: | http://doi.org/10.1103/PhysRevSTAB.15.110102 |
| _version_ | 1818535012661723136 |
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| author | M. Nakao T. Hiromasa H. Souda M. Tanabe T. Ishikawa H. Tongu A. Noda K. Jimbo T. Shirai M. Grieser H. Okamoto A. V. Smirnov |
| author_facet | M. Nakao T. Hiromasa H. Souda M. Tanabe T. Ishikawa H. Tongu A. Noda K. Jimbo T. Shirai M. Grieser H. Okamoto A. V. Smirnov |
| author_sort | M. Nakao |
| collection | DOAJ |
| description | We report the first observation of indirect resonantly enhanced transverse laser cooling of a bunched, stored ion beam of 40 keV ^{24}Mg^{+}. The longitudinal velocity distribution and the horizontal beam size of the laser-cooled ^{24}Mg^{+} ion beam with 280 nm laser light were simultaneously observed by the use of standard fluorescence-based techniques. Keeping the operation point at (2.068, 1.105), the synchrotron tune (ν_{s}) was changed from 0.0376 to 0.1299. A strong decrease in the cooled horizontal beam size and a corresponding increase in the equilibrium cooled momentum spread were observed at the expected synchrobetatron resonance coupling condition of ν_{s}=0.068, which is the first observation of a resonantly induced coupling for enhanced indirect transverse laser cooling of an ion beam, and is an important step towards creating a crystalline ground state of the beam. |
| first_indexed | 2024-12-11T18:19:09Z |
| format | Article |
| id | doaj.art-b591ceb97bab4c2cbf02f06df8f15764 |
| institution | Directory Open Access Journal |
| issn | 1098-4402 |
| language | English |
| last_indexed | 2024-12-11T18:19:09Z |
| publishDate | 2012-11-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Special Topics. Accelerators and Beams |
| spelling | doaj.art-b591ceb97bab4c2cbf02f06df8f157642022-12-22T00:55:19ZengAmerican Physical SocietyPhysical Review Special Topics. Accelerators and Beams1098-44022012-11-01151111010210.1103/PhysRevSTAB.15.110102Resonance coupling induced enhancement of indirect transverse cooling in a laser-cooled ion beamM. NakaoT. HiromasaH. SoudaM. TanabeT. IshikawaH. TonguA. NodaK. JimboT. ShiraiM. GrieserH. OkamotoA. V. SmirnovWe report the first observation of indirect resonantly enhanced transverse laser cooling of a bunched, stored ion beam of 40 keV ^{24}Mg^{+}. The longitudinal velocity distribution and the horizontal beam size of the laser-cooled ^{24}Mg^{+} ion beam with 280 nm laser light were simultaneously observed by the use of standard fluorescence-based techniques. Keeping the operation point at (2.068, 1.105), the synchrotron tune (ν_{s}) was changed from 0.0376 to 0.1299. A strong decrease in the cooled horizontal beam size and a corresponding increase in the equilibrium cooled momentum spread were observed at the expected synchrobetatron resonance coupling condition of ν_{s}=0.068, which is the first observation of a resonantly induced coupling for enhanced indirect transverse laser cooling of an ion beam, and is an important step towards creating a crystalline ground state of the beam.http://doi.org/10.1103/PhysRevSTAB.15.110102 |
| spellingShingle | M. Nakao T. Hiromasa H. Souda M. Tanabe T. Ishikawa H. Tongu A. Noda K. Jimbo T. Shirai M. Grieser H. Okamoto A. V. Smirnov Resonance coupling induced enhancement of indirect transverse cooling in a laser-cooled ion beam Physical Review Special Topics. Accelerators and Beams |
| title | Resonance coupling induced enhancement of indirect transverse cooling in a laser-cooled ion beam |
| title_full | Resonance coupling induced enhancement of indirect transverse cooling in a laser-cooled ion beam |
| title_fullStr | Resonance coupling induced enhancement of indirect transverse cooling in a laser-cooled ion beam |
| title_full_unstemmed | Resonance coupling induced enhancement of indirect transverse cooling in a laser-cooled ion beam |
| title_short | Resonance coupling induced enhancement of indirect transverse cooling in a laser-cooled ion beam |
| title_sort | resonance coupling induced enhancement of indirect transverse cooling in a laser cooled ion beam |
| url | http://doi.org/10.1103/PhysRevSTAB.15.110102 |
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