V2EX zeeman slower

Zeeman Slower

定义 Definition

Zeeman slower(塞曼减速器/塞曼慢化器):一种用于减慢原子束的实验装置,常见于原子物理与激光冷却实验。它利用反向传播的激光对原子施加辐射压力,同时通过沿轴向变化的非均匀磁场(塞曼效应)来补偿多普勒频移,使原子在减速过程中始终接近共振,从而持续被“光推回去”并减速。
(该术语主要指这种装置;“Zeeman”也可指塞曼效应等相关概念。)

发音 Pronunciation (IPA)

/zemn slor/

例句 Examples

A Zeeman slower helps slow atoms for laser cooling.
塞曼减速器有助于在激光冷却中减慢原子。

In our ultracold-atom setup, the Zeeman slower delivers a high flux of slowed atoms into the magneto-optical trap, improving loading efficiency.
在我们的超冷原子装置中,塞曼减速器将大量已减速的原子送入磁光阱,从而提高装载效率。

词源 Etymology

“Zeeman”来自荷兰物理学家皮特塞曼(Pieter Zeeman)的姓氏,他发现了塞曼效应(磁场使原子谱线分裂/位移的现象)。“slower”意为“减速器”。合起来,“Zeeman slower”指利用塞曼效应配合激光散射来实现连续减速的装置名称。

相关词 Relatd Words

文学/著作中的用例 Literary Works

  • Laser Cooling and Trapping(Harold J. Metcalf & Peter van der Straten)讨论原子减速与俘获技术,包含对 Zeeman slower 的系统介绍。
  • Atomic Physics(Christopher J. Foot)在激光冷却与俘获章节中涉及 Zeeman slower 的原理与实验背景。
  • Phillips, W. D. & Metcalf, H. J. 等经典激光冷却相关论文(如关于原子束减速与俘获的早期工作)在实验方法部分常出现 Zeeman slower 作为关键装置。
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