Article
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Analysis of Laser Plasma Aluminum Monoxide Emission Spectra
Version 1
: Received: 29 April 2023 / Approved: 30 April 2023 / Online: 30 April 2023 (04:36:48 CEST)
How to cite: Parigger, C. Analysis of Laser Plasma Aluminum Monoxide Emission Spectra. Preprints 2023, 2023041258. https://doi.org/10.20944/preprints202304.1258.v1 Parigger, C. Analysis of Laser Plasma Aluminum Monoxide Emission Spectra. Preprints 2023, 2023041258. https://doi.org/10.20944/preprints202304.1258.v1
Abstract
This work communicates analysis of aluminum monoxide, AlO, laser-plasma emission records using line strength data and the ExoMol astrophysical database. A nonlinear fitting program computes comparisons of measured and simulated diatomic molecular spectra. Predicted cyanide spectra of the AlO, ${\rm B}\ ^2\,\Sigma^+ \longrightarrow {\rm X} \ ^2\,\Sigma^+$, $\Delta {\rm v} = 0, \pm 1, \pm 2, + 3$ sequences and progressions compare nicely with 1 nanometer resolution experimental results. The analysis discusses experiment data captured during laser ablation of Al$_2$O$_3$ with 266-nm, 6-mJ pulses. The accuracy of the AlO line strength data is better than one picometer. This work presents as well comparison of the $^{27}$Al$^{16}$O line strength and of ExoMol data for spectral resolutions of 0.1nm and 0.07nm. Accurate AlO databases show a volley of applications in laboratory and astrophysical plasma diagnosis.
Keywords
diatomic molecules; aluminum monoxide; laser-plasma; data analysis; laser induced breakdown spectroscopy; combustion; time-resolved spectroscopy; spectra fitting program; astrophysics
Subject
Physical Sciences, Atomic and Molecular Physics
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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