Extending a release-and-recapture scheme to single atom optical tweezer for effective temperature evaluation

• 来源期刊: 中国物理B(英文版)
• 学科: 物理学
• 关键词: 冷原子荧光 光学镊子 有效积温 评价 磁场梯度 有效温度 发布时间 磁光阱
• 年，卷（期）: 2011,（7）
• 页码范围: 073701.1-073701.7
• 页数: 2页
• 分类号: O43
• 语种: 英文
• DOI: 10.1088/1674-1056/20/7/073701

摘要

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 th...