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Chemistry
强场绝热电离多原子自由基阳离子超快振动相干的测量
强场绝热电离多原子自由基阳离子超快振动相干的测量
JoVE Journal
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JoVE Journal Chemistry
Measurement of Ultrafast Vibrational Coherences in Polyatomic Radical Cations with Strong-Field Adiabatic Ionization

强场绝热电离多原子自由基阳离子超快振动相干的测量

Full Text
7,363 Views
08:22 min
August 6, 2018

DOI: 10.3791/58263-v

Derrick Ampadu Boateng1, Katharine Moore Tibbetts1

1Department of Chemistry,Virginia Commonwealth University

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Please note that some of the translations on this page are AI generated. Click here for the English version.

我们提出了一个方法来探测超快振动相干的原子基阳离子, 导致分子离解。

这种方法可以帮助回答有关多原子自由基阳离子超快动力学的关键问题,例如相干振动运动是否被激发以及相干外离如何驱动键缔合。该技术的主要优点是可以在基电子态下制备多原子自由基阳离子,这显着提高了解析相干振动运动的能力。通常,刚接触这种方法的人会努力设置两个具有相同路径名称的独立光束路径,以确保两个光束在必要时完全平行或平行传播。

首先,打开飞秒激光器并等待约 30 分钟使其稳定。在激光输出后放置一个 90/10 分束器以生成两个复制品,用于构建泵浦和探针光束线。检查分束器前的激光功率和透射光束的功率,以确保透射大约 10% 的功率。

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