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Observation of 1D−1S forbidden optical emission of atomic oxygen in atmospheric‐pressure N2/O2 plasma jet
Contributions to Plasma Physics ( IF 1.3 ) Pub Date : 2020-07-07 , DOI: 10.1002/ctpp.202000061
Koichi Sasaki 1 , Shusuke Nishiyama 1, 2 , Naoki Shirai 1
Affiliation  

We observed green optical emission from an atmospheric‐pressure N2/O2 plasma jet. The green optical emission was composed of a line emission at λ = 557.71 ± 0.03 nm and a broadband component at 530 ≤ λ ≤ 560 nm. The line emission was assigned to the 1D1S forbidden transition of atomic oxygen, whereas the broadband emission was due to the formation of O(1S)N2 excimer. We measured the absolute densities of O(1S) and O(1S)N2 using a spectrograph with the absolute sensitivity calibration, and we discussed the kinetics in the green plasma jet on the basis of the absolute O(1S) and O(1S)N2 densities. According to the rate coefficients and the transition probabilities reported in literature, the present experimental results are explained if the densities of urn:x-wiley:08631042:media:ctpp202000061:ctpp202000061-math-0002 and O(3P) are 9 × 1013 and 3 × 1013cm−3, respectively.

中文翻译:

常压N2 / O2等离子射流中原子氧的1D-1S禁止光发射的观察

我们观察到来自大气压N 2 / O 2等离子体射流的绿色光发射。绿色的光发射是由在一行发射λ  = 557.71±0.03纳米,并在一个宽带部件530≤  λ  ≤560纳米。线发射被分配到1 d - 1 š禁止原子氧的过渡,而宽带发射是由于形成O(1个小号)N 2受激准分子。我们测量了O(1 SO(1 SN 2使用具有绝对灵敏度校准的光谱仪,并且我们基于绝对O(1 SO(1 S)N 2密度讨论了绿色等离子体射流中的动力学。根据文献报道的速率系数和跃迁概率,如果骨灰盒:x-wiley:08631042:media:ctpp202000061:ctpp202000061-math-0002O(3 P的密度分别为9×10 133×10 13 cm -3,则可以解释本实验结果。
更新日期:2020-07-07
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