Parigger Christian G, Helstern Christopher M, Jordan Benjamin S, Surmick David M, Splinter Robert
Physics and Astronomy Department, University of Tennessee, University of Tennessee Space Institute, Center for Laser Applications, 411 B.H. Goethert Parkway, Tullahoma, TN 37388-9700, USA.
Nuclear Engineering Department, Tickle College of Engineering, University of Tennessee, 1412 Circle Drive, Knoxville, TN 37912, USA.
Molecules. 2020 Feb 22;25(4):988. doi: 10.3390/molecules25040988.
This article discusses laser-induced laboratory-air plasma measurements and analysis of hydroxyl (OH) ultraviolet spectra. The computations of the OH spectra utilize line strength data that were developed previously and that are now communicated for the first time. The line strengths have been utilized extensively in interpretation of recorded molecular emission spectra and have been well-tested in laser-induced fluorescence applications for the purpose of temperature inferences from recorded data. Moreover, new experiments with Q-switched laser pulses illustrate occurrence of molecular recombination spectra for time delays of the order of several dozen of microseconds after plasma initiation. The OH signals occur due to the natural humidity in laboratory air. Centrifugal stretching of the Franck-Condon factors and r-centroids are included in the process of determining the line strengths that are communicated as a Supplementary File. Laser spectroscopy applications of detailed OH computations include laser-induced plasma and combustion analyses, to name but two applications. This work also includes literature references that address various diagnosis applications.
本文讨论了激光诱导的实验室空气等离子体中羟基（OH）紫外光谱的测量与分析。OH光谱的计算利用了先前开发且首次公布的谱线强度数据。这些谱线强度已被广泛用于解释记录的分子发射光谱，并且在激光诱导荧光应用中经过了充分测试，用于从记录数据推断温度。此外，用调Q激光脉冲进行的新实验表明，在等离子体产生后几十微秒量级的时间延迟下会出现分子复合光谱。OH信号是由实验室空气中的自然湿度产生的。在确定作为补充文件公布的谱线强度的过程中，考虑了弗兰克 - 康登因子和r - 质心的离心展宽。详细的OH计算在激光光谱学中的应用包括激光诱导等离子体分析和燃烧分析，仅举这两个应用为例。这项工作还包括涉及各种诊断应用的文献参考。
