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arXiv physics/0512151physics.atom-phphysics.optics
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发射冷原子的双脉冲磁聚焦

Double-impulse magnetic focusing of launched cold atoms

Aidan S Arnold, Matthew J Pritchard, David A Smith, Ifan G Hughes

摘要:

我们已经从理论上研究了发射冷原子云使用一对磁透镜脉冲(交替梯度方法)的三维聚焦。单个透镜径向聚焦并轴向散焦,反之亦然。两种可能的脉冲序列的性能进行了比较,发现是理想的加载“煎饼”和“香肠”形的磁/光微陷阱。结果表明,聚焦像差是相当小的双脉冲磁透镜相比,单脉冲磁透镜。本文对双脉冲技术聚焦的云进行了分析。

英文摘要:

We have theoretically investigated 3D focusing of a launched cloud of cold atoms using a pair of magnetic lens pulses (the alternate-gradient method). Individual lenses focus radially and defocus axially or vice-versa. The performance of the two possible pulse sequences are compared and found to be ideal for loading both 'pancake' and 'sausage' shaped magnetic/optical microtraps. It is shown that focusing aberrations are considerably smaller for double-impulse magnetic lenses compared to single-impulse magnetic lenses. An analysis of the clouds focused by double-impulse technique is presented.

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。

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