对“通过激光烧蚀产生铟的冷低发散原子束”的评论 [《科学仪器评论》76, 113302 (2005)]。
Comment on "Generation of cold low divergent atomic beam of indium by laser ablation" [Rev. Sci. Instrum. 76, 113302 (2005)].
作者信息
Denning A, Booth A, Lee S, Amonson M, Bergeson S D
出版信息
Rev Sci Instrum. 2009 Apr;80(4):047101; author reply 047102. doi: 10.1063/1.3100177.
PMID:19405705
Abstract
We present measurements of the velocity distribution of calcium atoms in an atomic beam generated using a dual-stage laser back-ablation apparatus. Distributions are measured using a velocity selective Doppler time-of-flight technique. They are Boltzmann-like with rms velocities corresponding to temperatures above the melting point for calcium. Contrary to a recent report in the literature, this method does not generate a subthermal atomic beam.
摘要
我们展示了使用双级激光背向烧蚀装置产生的原子束中钙原子速度分布的测量结果。使用速度选择性多普勒飞行时间技术测量分布。它们类似玻尔兹曼分布，均方根速度对应于高于钙熔点的温度。与文献中最近的一份报告相反，该方法不会产生亚热原子束。
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