Oxidation in laser-generated metal plumes
| العنوان: | Oxidation in laser-generated metal plumes |
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| المؤلفون: | Elizabeth Kautz, Alla Zelenyuk, Mark Phillips, Hari Harilal |
| المصدر: | Physics of Plasmas. 29 |
| بيانات النشر: | AIP Publishing, 2022. |
| سنة النشر: | 2022 |
| مصطلحات موضوعية: | Condensed Matter Physics |
| الوصف: | The temporal evolution of atoms and molecules in a laser-produced plasma was investigated using optical emission spectroscopy for several metal targets (i.e., Al, Ti, Fe, Zr, Nb, and Ta). Plasmas from metal targets were generated by focusing 1064 nm, 6 ns pulses from an Nd:YAG laser. Gas-phase oxidation/plasma chemistry was initiated by adding O2 (partial pressures up to ≈20%) to an N2 environment where the total background pressure was kept at a constant 1 atmosphere. Temporally resolved emission spectral features were used to track the gas-phase oxidation. The dynamics of atomic and molecular species were monitored using space-resolved time-of-flight emission spectroscopy. Our results highlight that the partial pressure of O2 strongly influences spectral features and molecular formation in laser-produced plasmas. Atoms and molecules co-exist in plasmas, although with different temporal histories depending on the target material due to differences in thermo- and plasma chemical reactions occurring in the plume. |
| تدمد: | 1089-7674 1070-664X |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::89b3cc3d947720a36d86eb712485dbe7 https://doi.org/10.1063/5.0090155 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........89b3cc3d947720a36d86eb712485dbe7 |
| قاعدة البيانات: | OpenAIRE |
Find this article in full text from Scitation. | تدمد: | 10897674 1070664X |
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