A diffuse plasma jet generated from the preexisting discharge filament at atmospheric pressure | |
Li, Jing1,2,3; Xu, Yonggang1,2; Zhang, Tongyi1,2; Tang, Jie1,2; Wang, Yishan1,2; Zhao, Wei1,2; Duan, Yixiang1,2,4; Tang, Jie (tangjie1979@opt.ac.cn) | |
作者部门 | 瞬态光学技术国家重点实验室 |
2017-07-07 | |
发表期刊 | JOURNAL OF APPLIED PHYSICS |
ISSN | 0021-8979 |
卷号 | 122期号:1 |
产权排序 | 1 |
摘要 | A diffuse plasma jet was realized by expanding the preexisting argon filamentary discharge into a diffuse one at atmospheric pressure. Examination of emission spectra from the plasma jet shows that the emission intensities of OH and Ar increase with the argon flow near the quartz tube nozzle, while the N-2 emission intensity first increases, then decreases, and finally approximately remains unchanged with the increase in the argon flow of interest. It is also found that with the argon flow set at 0.4 l/min,most of the reactive species are gathered close to the nozzle, the OH and Ar emission intensities decrease quickly after the plasma propagates out of the nozzle, but the N-2 emission is able to propagate over a larger distance. These distinct spectral emission features of OH, N-2, and Ar are attributed to the different generation and quenching mechanisms of their corresponding excited states, i.e., OH(A (2)Sigma(+)), N-2(C (3)Pi(mu)), and Ar(4p)/Ar(4s) in the argon plasma jet. Additionally, the formation of the diffuse plasma jet has been clarified by observing the discharge burning phase and solving the Poisson equation for the electric field distribution in an argon cylindrical dielectric-barrier discharge. The filamentary discharge deposits charged particles onto the dielectric. The positive surface charges in the positive half cycle induce a relatively high field in the local region close to the dielectric. The relatively high field and the high pre-ionization in this local region play a key role in initiating the diffuse positive corona. Published by AIP Publishing. |
文章类型 | Article |
WOS标题词 | Science & Technology ; Physical Sciences |
DOI | 10.1063/1.4989975 |
收录类别 | SCI ; EI |
关键词[WOS] | DIELECTRIC-BARRIER DISCHARGE ; SILENT DISCHARGE ; GLOW-DISCHARGES ; RATE CONSTANTS ; AIR ; MICRODISCHARGES ; MECHANISMS ; ARGON ; MODEL ; GAS |
语种 | 英语 |
WOS研究方向 | Physics |
项目资助者 | National Major Scientific Instruments and Equipment Development Special Funds(2011YQ030113) ; Natural Science Foundation of Shaanxi Province, China(2015JM1019) ; CAS "Light of West China" Program(XAB2015A08) |
WOS类目 | Physics, Applied |
WOS记录号 | WOS:000405084900008 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.opt.ac.cn/handle/181661/29122 |
专题 | 瞬态光学研究室 |
通讯作者 | Tang, Jie (tangjie1979@opt.ac.cn) |
作者单位 | 1.Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Xian 710119, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Huaiyin Inst Technol, Fac Math & Phys, Huaian 223003, Peoples R China 4.Sichuan Univ, Coll Life Sci, Res Ctr Analyt Instrumentat, Chengdu 610064, Peoples R China |
推荐引用方式 GB/T 7714 | Li, Jing,Xu, Yonggang,Zhang, Tongyi,et al. A diffuse plasma jet generated from the preexisting discharge filament at atmospheric pressure[J]. JOURNAL OF APPLIED PHYSICS,2017,122(1). |
APA | Li, Jing.,Xu, Yonggang.,Zhang, Tongyi.,Tang, Jie.,Wang, Yishan.,...&Tang, Jie .(2017).A diffuse plasma jet generated from the preexisting discharge filament at atmospheric pressure.JOURNAL OF APPLIED PHYSICS,122(1). |
MLA | Li, Jing,et al."A diffuse plasma jet generated from the preexisting discharge filament at atmospheric pressure".JOURNAL OF APPLIED PHYSICS 122.1(2017). |
条目包含的文件 | ||||||
文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
A diffuse plasma jet(3130KB) | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-SA | 请求全文 |
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