论文标题
用宽带光源确定振动分布
Determining a vibrational distribution with a broadband optical source
论文作者
论文摘要
这项工作提出了一种实验方案，该方案旨在确定在氩超超声梁中播种的单氟化钡分子的振动分布。在这里，与许多情况下一样，检测信号与涉及几个可能难以正确确定的几个参数的效率与分子数量有关。特别是，该效率取决于检测到的分子的振动水平。我们的方法通过比较不同的振动激发产生的不同检测信号来避免这些并发症。通过使用宽带光源来使这种激发能够耗尽特定的振动水平，该振动水平在其他级别中重新分布。
This work presents an experimental protocol conceived to determine the vibrational distribution of barium monofluoride molecules seeded in a supersonic beam of argon. Here, as in many cases, the detection signal is related to the number of molecules by an efficiency involving several parameters that may be difficult to determine properly. In particular, this efficiency depends on the vibrational level of the detected molecules. Our approach avoids these complications by comparing different detection signals generated by different vibrational excitations. Such an excitation is made possible by the use of a broadband optical source that depletes a specific vibrational level whose population is redistributed in the other levels.
