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arXiv 2406.19944physics.atom-phphysics.ins-det
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教程:用于优化冷原子实验中激光冷却的电流控制器

Tutorial: Current controllers for optimizing laser cooling on cold atom experiments

D. O. Sabulsky

AI总结:

本文介绍基于功率运算放大器的单芯片电流源设计,用于冷原子实验中控制磁场,并成功应用于$^{87}$Rb的激光冷却与Raman光谱学,旨在为新研究者提供教程。

摘要:

本文介绍并演示了基于普通功率运算放大器的单芯片电流源设计,用于在冷原子实验中利用偏置/匀场电磁铁控制外加磁场。该设计的有效性通过将其应用于红失谐偏振梯度冷却$^{87}$Rb至3 $μ$K得以实现。此外,我们演示了使用这些器件施加电流以产生精确、准确且可重复的磁场来进行Raman光谱学。本工作旨在作为激光冷却与囚禁领域新研究生和博士后的简短教程。

英文摘要:

The design of single chip current source based on a common power operational amplifier is presented and demonstrated for the purpose of controlling applied magnetic fields using bias/shim electromagnets in cold atom experiments. The efficacy of the design is realized via application to red-detuned polarization-gradient cooling of $^{87}$Rb down to 3 $μ$K. Further, we demonstrate Raman spectroscopy using these devices to apply current and so generate a precise, accurate, and reproducible magnetic field. This work is intended as a short tutorial for new graduate students and postdocs of laser cooling and trapping.

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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