用噪声激光测量铷同位素位移
Rubidium Isotope Shift Measurement using Noisy Lasers
摘要：
学生从典型的高年级本科生实验室收集的铷的饱和吸收光谱（SAS）的数据可以用来测量同位素位移，从而导致同位素基态能量位移的估计。这有助于学生完善他们的原子基态的"图片"。我们从理论上描述了为什么这个实验室的工作原理以及自由运行的激光二极管，实验证明它使用这些激光器调谐到任何主要的近红外跃迁，并显示扩展的实验室使用的调制转移光谱方法。
英文摘要：
Data students collect from the typical advanced undergraduate laboratory on Saturated Absorption Spectroscopy (SAS) of rubidium can be used to measure the isotope shift and thus leads to an estimate of the isotopic ground state energy shift. This helps students refine their `picture' of the atomic ground state. We describe theoretically why this laboratory works well with free-running laser diodes, demonstrate it experimentally using these lasers tuned to either principal near-infrared transitions, and show an extension of the laboratory using the modulation transfer spectroscopy method.
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