Diagnosis of electron temperature and density in the early stage of laser-produced Si plasma expansion
文献类型：期刊论文
| 作者 | Wang, Kaiping1; Su, Maogen1,2,3; Cao, Shiquan1; Ma, Pengpeng1; Sun, Duixiong1,2,3; Min, Qi1; Dong, Chenzhong1,2,3 |
| 刊名 | PHYSICS OF PLASMAS
 |
| 出版日期 | 2020-06-01 |
| 卷号 | 27期号:6页码:6 |
| ISSN号 | 1070-664X |
| DOI | 10.1063/5.0005859 |
| 通讯作者 | Su, Maogen(nwnu_sumg@163.com) |
| 英文摘要 | We measured time-resolved spectra of laser-produced plasma of Si in a vacuum at the early phase evolution (30-100ns) and found clear signs of spectral line broadening. Based on the measured line intensities of Si2+ and Si3+ ions, the Saha-Boltzmann method is used to diagnose the electron temperature. The Stark broadening of different high-charge ion lines is combined with a modified Griem semi-empirical formula to diagnose the electron density of Si plasma in the early evolutionary stage. The effects of self-absorption, natural broadening, and Doppler broadening on the spectral profiles were evaluated. We also conducted experiments to verify that current experimental conditions satisfied the local thermodynamic equilibrium conditions. Finally, time evolutions for the electron temperature and electron density in the early stage of plasma evolution were obtained. |
| WOS关键词 | EQUILIBRIUM ; VALIDITY ; ELEMENTS ; LINES |
| 资助项目 | National Key Research and Development Program of China[2017YFA0402300] ; Natural Science Foundation of China (NSFC)[11874051] ; Natural Science Foundation of China (NSFC)[11564037] ; Natural Science Foundation of China (NSFC)[61741513] ; Special Fund Project for Guiding Scientific and Technological Innovation of Gansu Province[2019zx-10] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000541897700002 |
| 出版者 | AMER INST PHYSICS |
| 资助机构 | National Key Research and Development Program of China ; Natural Science Foundation of China (NSFC) ; Special Fund Project for Guiding Scientific and Technological Innovation of Gansu Province |
| 源URL | [http://119.78.100.186/handle/113462/140352]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Su, Maogen |
| 作者单位 | 1.Northwest Normal Univ, Coll Phys & Elect Engn, Key Lab Atom & Mol Phys & Funct Mat Gansu Prov, Lanzhou 730070, Peoples R China 2.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730070, Peoples R China 3.Northwest Normal Univ, Joint Lab Atom & Mol Phys, Lanzhou 730070, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Kaiping,Su, Maogen,Cao, Shiquan,et al. Diagnosis of electron temperature and density in the early stage of laser-produced Si plasma expansion[J]. PHYSICS OF PLASMAS,2020,27(6):6. |
| APA | Wang, Kaiping.,Su, Maogen.,Cao, Shiquan.,Ma, Pengpeng.,Sun, Duixiong.,...&Dong, Chenzhong.(2020).Diagnosis of electron temperature and density in the early stage of laser-produced Si plasma expansion.PHYSICS OF PLASMAS,27(6),6. |
| MLA | Wang, Kaiping,et al."Diagnosis of electron temperature and density in the early stage of laser-produced Si plasma expansion".PHYSICS OF PLASMAS 27.6(2020):6. |
入库方式： OAI收割
来源：近代物理研究所
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