Extending a release-and-recapture scheme to single atom optical tweezer for effective temperature evaluation
By recording the fluorescence fraction of the cold atoms remaining in the magneto-optical trap （MOT） as a function of the release time, the release-and-recapture （R＆R） method is utilized to evaluate the effective temperature of the cold atomic ensemble. We prepare a single atom in a large-magnetic-g...
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| Published in | Chinese physics B Vol. 20; no. 7; pp. 151 - 157 |
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| Main Author | |
| Format | Journal Article |
| Language | English |
| Published |
01.07.2011
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1674-1056 2058-3834 |
| DOI | 10.1088/1674-1056/20/7/073701 |
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| Abstract | By recording the fluorescence fraction of the cold atoms remaining in the magneto-optical trap （MOT） as a function of the release time, the release-and-recapture （R＆R） method is utilized to evaluate the effective temperature of the cold atomic ensemble. We prepare a single atom in a large-magnetic-gradient MOT and then transfer the trapped single atom into a 1064-nm microscopic optical tweezer. The energy of the single atom trapped in the tweezer is further reduced by polarization gradient cooling （PGC） and the effective temperature is evaluated by extending the R-R technique to a single atom tweezer. The typical effective temperature of a single atom in the tweezer is improved from about 105 μK to about 17 μK by applying the optimum PGC phase. |
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| AbstractList | By recording the fluorescence fraction of the cold atoms remaining in the magneto-optical trap （MOT） as a function of the release time, the release-and-recapture （R＆R） method is utilized to evaluate the effective temperature of the cold atomic ensemble. We prepare a single atom in a large-magnetic-gradient MOT and then transfer the trapped single atom into a 1064-nm microscopic optical tweezer. The energy of the single atom trapped in the tweezer is further reduced by polarization gradient cooling （PGC） and the effective temperature is evaluated by extending the R-R technique to a single atom tweezer. The typical effective temperature of a single atom in the tweezer is improved from about 105 μK to about 17 μK by applying the optimum PGC phase. By recording the fluorescence fraction of the cold atoms remaining in the magneto-optical trap (MOT) as a function of the release time, the release-and-recapture (R&R) method is utilized to evaluate the effective temperature of the cold atomic ensemble. We prepare a single atom in a large-magnetic-gradient MOT and then transfer the trapped single atom into a 1064-nm microscopic optical tweezer. The energy of the single atom trapped in the tweezer is further reduced by polarization gradient cooling (PGC) and the effective temperature is evaluated by extending the R&R technique to a single atom tweezer. The typical effective temperature of a single atom in the tweezer is improved from about 105 Delta *mK to about 17 Delta *mK by applying the optimum PGC phase. |
| Author | 何军 杨保东 张天才 王军民 |
| AuthorAffiliation | State Key Laboratory of Quantum Optics and Quantum Optics Devices, and Institute of Opto-Electronics Shanxi University, Taiyuan 030006, China |
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| CitedBy_id | crossref_primary_10_1088_1674_1056_22_2_023702 crossref_primary_10_1007_s10948_020_05555_6 crossref_primary_10_1007_s11434_012_5153_8 crossref_primary_10_7498_aps_63_053202 crossref_primary_10_1016_j_ssc_2020_114101 crossref_primary_10_1088_1674_1056_22_3_034206 crossref_primary_10_1007_s11433_012_4847_x crossref_primary_10_1103_PhysRevA_106_022604 |
| Cites_doi | 10.1103/PhysRevLett.57.314 10.1364/OE.17.022898 10.1103/PhysRevLett.96.030404 10.1103/PhysRevA.72.023406 10.1103/PhysRevA.73.043406 10.1038/nphys1183 10.1088/0022-3727/44/13/135102 10.1088/1674-1056/18/8/046 10.1103/PhysRevLett.84.439 10.1117/12.856340 10.1103/PhysRevLett.74.1542 10.1103/PhysRevLett.87.010404 10.1103/PhysRevA.65.021401 10.1103/PhysRevA.75.040301 10.1103/PhysRevLett.93.150501 10.1103/PhysRevA.78.033425 10.1126/science.1113394 10.1088/0256-307X/27/2/023701 10.1038/nphys1178 10.1088/1674-1056/17/6/020 10.1103/PhysRevA.47.R4567 10.1038/nature02387 10.1088/1674-1056/17/11/037 10.1103/PhysRevLett.55.48 10.1063/1.1785844 10.1088/1367-2630/12/5/053028 10.1103/PhysRevA.67.033403 10.1016/S1049-250X(08)60186-X 10.1007/978-1-4612-1470-0 10.1364/OE.17.021007 |
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| Notes | single atom, optical tweezer, effective temperature, release-and-recapture technique By recording the fluorescence fraction of the cold atoms remaining in the magneto-optical trap （MOT） as a function of the release time, the release-and-recapture （R＆R） method is utilized to evaluate the effective temperature of the cold atomic ensemble. We prepare a single atom in a large-magnetic-gradient MOT and then transfer the trapped single atom into a 1064-nm microscopic optical tweezer. The energy of the single atom trapped in the tweezer is further reduced by polarization gradient cooling （PGC） and the effective temperature is evaluated by extending the R-R technique to a single atom tweezer. The typical effective temperature of a single atom in the tweezer is improved from about 105 μK to about 17 μK by applying the optimum PGC phase. 11-5639/O4 He Jun, Yang Bao-Dong, Zhang Tian-Cai, Wang Jun-Min State Key Laboratory of Quantum Optics and Quantum Optics Devices, and Institute of Opto-Electronics Shanxi University, Taiyuan 030006, China ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 ObjectType-Article-1 ObjectType-Feature-2 |
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| References | 23 25 26 27 28 Ma H Y (29) 2008; 17 30 31 11 12 13 14 15 He J (24) 2011; 44 16 Wang J (21) 2008; 17 17 18 Fuhrmanek A (19) 2010; 12 Xia T (10) 2010; 27 1 2 3 4 5 6 7 8 He J (22) 2009; 18 20 He X D (9) 2009; 18 |
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| Snippet | By recording the fluorescence fraction of the cold atoms remaining in the magneto-optical trap （MOT） as a function of the release time, the... By recording the fluorescence fraction of the cold atoms remaining in the magneto-optical trap (MOT) as a function of the release time, the... |
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| SubjectTerms | Atomic force microscopy Cold atoms Cooling effects Fluorescence Nuclear power generation Optimization Polarization Recording 光学镊子 冷原子荧光 发布时间 有效温度 有效积温 磁光阱 磁场梯度 评价 |
| Title | Extending a release-and-recapture scheme to single atom optical tweezer for effective temperature evaluation |
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