Ablation of titanium wafers in air is accomplished with 60 µs pulsed, 2.94 µm laser radiation. Titanium monoxide spectra are measured in the wavelength range of 500 nm to 750 nm, and molecular signatures include bands of the C3 Δ → X3 Δ α, B3 Π → X3 Δ γ', and A3 Φ → X3 Δ γ transitions. The spatially and temporally averaged spectra appear to be in qualitative agreement with previous temporally resolved studies that employed shorter wavelengths and shorter pulse durations than utilized in this work. The background signals in the current study are possibly due to particulate content in the plume. A chemical kinetic model of the plume is being developed that will be coupled to a diatomic emission model in order to extract a molecular temperature from the observed spectra.
Journal of Physics: Conference Series
Van Woerkom, T. A., Perram, G. P., Parigger, C. G., Dolasinski, B. D., Phelps, C. D., & Berry, P. A. (2019). Plasma Spectroscopy of Titanium Monoxide for Characterization of Laser Ablation. Journal of Physics: Conference Series, 1289, Article 012042. https://doi.org/10.1088/1742-6596/1289/1/012042
This is an open access article published by The Institute of Physics (IOP) and distributed under the Creative Commons Attribution License.
Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. (CC BY 3.0)
Sourced from the published version of record cited below.