Following laser-induced plasma stoichiometry with atomic absorption spectroscopy
Following laser-induced plasma stoichiometry with atomic absorption spectroscopy
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采用原子吸收光谱法进行激光诱导等离子体化学计量
DOI：
10.1016/j.sab.2022.106600
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发表时间：
2023
期刊：
影响因子：
--
通讯作者：
Foster, Mary
中科院分区：
文献类型：
--
作者：
Merten, Jonathan;Nicholas, Erin;Ethridge, Shawnda;Bariola, Hannah;Chestnut, Shealyn;Anders, Anna;Brees, Jackie;Foster, Mary
采用原子吸收光谱法测量钛合金样品激光烧蚀形成的羽流中作为中性原子存在的钒和钛的绝对质量。在2到20微秒的延迟，绝对质量和温度测量纯氦和80：20的He/O2混合物下的时间分辨玻尔兹曼图。玻尔兹曼图，其中包括地面项（与基于发射的测量相反），产生了高质量的等离子体成分估计。在氦气下，金属蒸汽持续超过测量的最长20 μs延迟。在He下，V：Ti化学计量与标称样品成分在所有时间的预期大致相同。然而，在He：O2下，原子蒸气在10 μs内完全消失，并且随着延迟的增加，化学计量变得更加富集钒。这种富集被解释在两种金属的第一氧化物键能的差异。有证据表明，即使在氦气下，在研究的20 μs窗口内，金属也会损失。
Atomic absorption spectroscopy was used to measure the absolute vanadium and titanium masses present as neutral atoms in the plume formed by laser ablation of a titanium alloy sample. At delays between two and twenty microseconds, the absolute masses and temperatures were measured with time-resolved Boltzmann plots under pure helium and an 80:20 He/O2mixture. The Boltzmann plots, which include the ground term (in contrast to emission-based measurements), produced high-quality estimates of the plasma composition. Under helium, the metal vapors persisted beyond the longest ∼20 μs delays measured. The V:Ti stoichiometry was approximately as expected from the nominal sample composition at all times under He. However, under He:O2, the atomic vapor disappeared entirely in under 10 μs and the stoichiometry became more enriched in vanadium at increasing delays. This enrichment is interpreted in terms of the difference in first oxide bond energies of the two metals. There was evidence of loss of metal even under helium within the investigated 20 μs window.
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影响因子：
4.8
作者：
McKemmish, Laura K.;Masseron, Thomas;Tennyson, Jonathan
通讯作者：
Tennyson, Jonathan
使用双梳光谱对激光产生的等离子体进行多物种温度和数密度分析
影响因子：
3.2
作者：
Reagan R. D. Weeks;Yu Zhang;S. S. Harilal;M. Phillips;R. Jones
通讯作者：
R. Jones
大气压激光诱导等离子体中铀的差分激光吸收光谱。
影响因子：
3.6
作者：
N. Taylor;M. Phillips
通讯作者：
M. Phillips
DOI：
10.1016/s0584-8547(01)00192-6
发表时间：
2001-06
期刊：
Spectrochimica Acta Part B: Atomic Spectroscopy
影响因子：
--
作者：
V. Burakov;N. Tarasenko;N. Savastenko
通讯作者：
V. Burakov;N. Tarasenko;N. Savastenko
结合发射光谱和吸收光谱研究激光产生等离子体的早期和晚期动力学
DOI：
--
发表时间：
2021
期刊：
影响因子：
--
作者：
N. LaHaye;S. S. Harilal;M. Phillips
通讯作者：
M. Phillips