| 一种检测原子束激光准直效果的多狭缝技术 |
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| 引用本文： | 张宝武,李同保,马艳.一种检测原子束激光准直效果的多狭缝技术[J].原子与分子物理学报,2009,26(1):114-118. |
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| 作者姓名： | 张宝武 李同保 马艳 |
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| 作者单位： | 同济大学,上海,200092 |
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| 基金项目： | 国家科技支撑计划项目（批准号：2006BAF06B08）和上海市科委纳米专项项目（批准号：0652nm019） |
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| 摘 要： | 针对激光汇聚铬原子束沉积，提出了一种定性评价原子束横向准直度的多狭缝技术。与其他检测技术相比，它设计简单，使用方便，能够非常直观快捷地定量评价原子束横向准直度。理论模拟的结果显示，在我们实验条件下这种技术给出的铬原子束准直前横向宽度为13.8mm，半高宽为12mm，发散角为4.1mrad，准直后横向宽度为12.2mm，半高宽为4.8mm，发散角为1.6mrad。
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| 关 键 词： | 激光冷却 测温方法 光学粘胶 铬原子束 |
A Method of Multiple Slits for Measure of Laser Collimation of Atomic Beam |
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| Zhang Bao-wu,Li Tong-bao and Ma Yan.A Method of Multiple Slits for Measure of Laser Collimation of Atomic Beam[J].Journal of Atomic and Molecular Physics,2009,26(1):114-118. |
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| Authors: | Zhang Bao-wu Li Tong-bao and Ma Yan |
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| Abstract: | In this paper, we present a method of multiple slits for measure of laser collimation of atomic beam for laser-focused chromium (Cr) atomic deposition. Compared to the existed methods, it is relative easy to design, to use and to quickly straightforward measure the collimation. The calculated results show that with our experiment, before the laser collimation, the Cr atomic beam is with full transverse profile of 13.8mm, FWHM (Full Width at Half Maximum) of 12mm, and transverse divergence of 4.1mrad, while after the laser collimation, the Cr atomic beam is with full transverse profile of 12.2mm, FWHM (Full Width at Half Maximum) of 4.8mm, and transverse divergence of 1.6mrad. |
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| Keywords: | laser cooling method of measure temperature optical molasses Cr atomic beam |
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