Preprint Article Version 1 This version is not peer-reviewed

Spatial Molecular AlO Temperature Distributions in Laser-Induced Plasma

Version 1 : Received: 10 July 2019 / Approved: 11 July 2019 / Online: 11 July 2019 (09:30:23 CEST)

A peer-reviewed article of this Preprint also exists.

Surmick, D.M.; Dagel, D.J.; Parigger, C.G. Spatial Molecular AlO Temperature Distributions in Laser-Induced Plasma. Atoms 2019, 7, 86. Surmick, D.M.; Dagel, D.J.; Parigger, C.G. Spatial Molecular AlO Temperature Distributions in Laser-Induced Plasma. Atoms 2019, 7, 86.

Journal reference: Atoms 2019, 7, 86
DOI: 10.3390/atoms7030086

Abstract

Spatially resolved, line-of-sight measurements of aluminum monoxide emission spectra in laser ablation plasma are used with Abel inversion techniques to extract radial plasma temperatures. Contour mapping of the radially deconvolved signal intensity shows a ring of AlO formation near the plasma boundary with the ambient atmosphere. Simulations of the molecular spectra were coupled with the line profile fitting routines. Temperature results are presented with simultaneous inferences from lateral, asymmetric radial, and symmetric radial AlO spectral intensity profiles. This analysis indicates that we measured shockwave phenomena in the radial profiles, including a temperature drop behind the blast wave created during plasma initiation.

Subject Areas

molecular spectroscopy; diatomic spectroscopy; Abel transform; plasma spectroscopy; laser-induced breakdown spectroscopy; laser-induced plasma; plasma dynamics

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