Numerical simulation of nanosecond laser ablation and plasma characteristics considering a real gas equation of state
文献类型：期刊论文
| 作者 | Liu, Qiang1; Min, Qi1,2,3; Su, Maogen1,2,3; Liu, Xingbang1; Cao, Shiquan1,2,3; Sun, Duixiong1,2,3; Dong, Chenzhong1,2,3; Fu, Yanbiao1,2,3 |
| 刊名 | PLASMA SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2021-12-01 |
| 卷号 | 23期号:12页码:9 |
| 关键词 | ns-laser ablation hydrodynamic model Knudsen layer equation of state |
| ISSN号 | 1009-0630 |
| DOI | 10.1088/2058-6272/ac2815 |
| 通讯作者 | Min, Qi(mq_lpps@nwnu.edu.cn) ; Fu, Yanbiao(fuyb@nwnu.edu.cn) |
| 英文摘要 | Based on the governing equations which include the heat conduction equation in the target and the fluid equations of the vapor plasma, a two-dimensional axisymmetric model for ns-laser ablation considering the Knudsen layer and plasma shielding effect is developed. The equations of state of the plasma are described by a real gas approximation, which divides the internal energy into the thermal energy of atoms, ions and electrons, ionization energy and the excitation energy of atoms and ions. The dynamic evolution of the silicon target and plasma during laser ablation is studied by using this model, and the distributions of the temperature, plasma density, Mach number related to the evaporation/condensation of the target surface, laser transmissivity as well as internal energy of the plasma are given. It is found that the evolution of the target surface during laser ablation can be divided into three stages: (1) the target surface temperature increases continuously; (2) the sonic and subsonic evaporation; and (3) the subsonic condensation. The result of the internal energy distribution indicates that the ionization and excitation energy plays an important role in the internal energy of the plasma during laser ablation. This model is suitable for the case that the temperature of the target surface is lower than the critical temperature. |
| WOS关键词 | RADIATION ; EVOLUTION ; DYNAMICS |
| 资助项目 | National Key Research and Development Program of China[2017YFA0402300] ; National Natural Science Foundation of China[11904293] ; National Natural Science Foundation of China[12064040] ; National Natural Science Foundation of China[11874051] ; Science and technology project of Gansu Province[20JR5RA530] ; Young Teachers Scientific Research Ability Promotion Plan of Northwest Normal University[NWNU-LKQN-18-32] ; Funds for Innovative Fundamental Research Group Project of Gansu Province[20JR5RA541] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000706853800001 |
| 出版者 | IOP Publishing Ltd |
| 资助机构 | National Key Research and Development Program of China ; National Natural Science Foundation of China ; Science and technology project of Gansu Province ; Young Teachers Scientific Research Ability Promotion Plan of Northwest Normal University ; Funds for Innovative Fundamental Research Group Project of Gansu Province |
| 源URL | [http://119.78.100.186/handle/113462/136183]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Min, Qi; Fu, Yanbiao |
| 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 | Liu, Qiang,Min, Qi,Su, Maogen,et al. Numerical simulation of nanosecond laser ablation and plasma characteristics considering a real gas equation of state[J]. PLASMA SCIENCE & TECHNOLOGY,2021,23(12):9. |
| APA | Liu, Qiang.,Min, Qi.,Su, Maogen.,Liu, Xingbang.,Cao, Shiquan.,...&Fu, Yanbiao.(2021).Numerical simulation of nanosecond laser ablation and plasma characteristics considering a real gas equation of state.PLASMA SCIENCE & TECHNOLOGY,23(12),9. |
| MLA | Liu, Qiang,et al."Numerical simulation of nanosecond laser ablation and plasma characteristics considering a real gas equation of state".PLASMA SCIENCE & TECHNOLOGY 23.12(2021):9. |
入库方式： OAI收割
来源：近代物理研究所
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