arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0811.0410physics.atom-ph
收藏

光学糖蜜对浅光阱加载的影响

The influence of optical molasses in loading a shallow optical trap

Mathew S. Hamilton, Anthony R. Gorges, Jacob L. Roberts

备注：
7 pages, 5 figures
阅读 PDF
arXiv 页面 ↗HTML 原文 ↗

摘要：

我们研究了从光学糖蜜中将~（85）Rb原子加载到浅的远场共振阱（FORT）中，并将其与磁光阱（MOT）中的加载进行了比较。我们发现，实质上更多的原子可以加载到FORT通过光学糖蜜相比，从MOT单独加载。为了确定为什么会出现这种情况，我们测量了加载到FORT中的原子的速率以及加载过程中FORT的损失。对于MOT和糖蜜负载，我们研究了原子负载率和损失在一个范围内的失谐以及超精细泵功率。我们发现，在MOT加载过程中引起的损失基本上是相同的，在相同的MOT/糖蜜失谐糖蜜加载过程中引起的损失。相反，在给定的失谐量下，糖蜜的负载率高于MOT。这使得光学糖蜜能够比MOT装载更多的原子。优化FORT加载形式的光学糖蜜提高了原子的数量，我们可以捕获的一个因素的两个以上的最佳加载从MOT。

英文摘要：

We have examined loading of 85Rb atoms into a shallow Far-Off-Resonance Trap (FORT) from an optical molasses and compared it to loading from a Magneto-Optical Trap (MOT). We found that substantially more atoms could be loaded into the FORT via an optical molasses as compared to loading from the MOT alone. To determine why this was the case, we measured the rate of atoms loaded into the FORT and the losses from the FORT during the loading process. For both MOT and molasses loading, we examined atom load rate and losses over a range of detunings as well as hyperfine pump powers. We found that the losses induced during MOT loading were essentially the same as the losses induced during molasses loading at the same MOT/molasses detuning. In contrast, load rate of the molasses was higher than that of a MOT at a given detuning. This caused the optical molasses to be able to load more atoms than the MOT. Optimization of FORT loading form an optical molasses improved the number of atoms we could trap by a factor of two over that of optimal loading from a MOT.

机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。

↑