Effect of laser energy on laser-induced plasma confined by a hemispherical cavity
文献类型：期刊论文
| 作者 | Wang, Jingge2,3; Feng, Di3; Li, Xiaolong1; Li, Xinzhong3; Qian, Dongbin1
|
| 刊名 | SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY
 |
| 出版日期 | 2021 |
| 卷号 | 175页码:7 |
| 关键词 | Laser-induced breakdown spectroscopy Spatial confinement Laser energy |
| ISSN号 | 0584-8547 |
| DOI | 10.1016/j.sab.2020.106015 |
| 通讯作者 | Wang, Jingge(wangjingge1987@126.com) |
| 英文摘要 | To study the influence of laser energy on the enhancement characteristics of plasma confined by a hemispherical cavity, the time-resolved spectra of the plasma with and without confinement under different laser energies were collected. When the laser energy exceeded 80 mJ, the spectral line intensity was enhanced significantly at the delay time range of 8-14 mu s. Significantly, the maximum enhanced factor increased with the increase in the laser energy, while the corresponding delay time decreased gradually. These results indicated that when a laser pulse with relatively high energy is used to ablate the sample, a strongly reflected shockwave will be generated to compress the plasma, resulting in a significant enhancement effect at an early stage. Comparing the distributions of the plasma temperature, it was found that the plasma confined by a hemispherical cavity could maintain a relatively high temperature for a long period, resulting in spectral enhancement. |
| WOS关键词 | INDUCED BREAKDOWN SPECTROSCOPY ; QUANTITATIVE-ANALYSIS ; HEAVY-METALS ; SHOCK-WAVE ; ENHANCEMENT ; ABLATION ; QUANTIFICATION ; PROPAGATION ; NANOSECOND ; EMISSION |
| 资助项目 | National Natural Science Foundation of China[11504091] ; National Natural Science Foundation of China[11974102] |
| WOS研究方向 | Spectroscopy |
| 语种 | 英语 |
| WOS记录号 | WOS:000606810900006 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://119.78.100.186/handle/113462/138244]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Wang, Jingge |
| 作者单位 | 1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 2.Luoyang Normal Univ, Henan Key Lab Electromagnet Transformat & Detect, Luoyang 471934, Peoples R China 3.Henan Univ Sci & Technol, Sch Phys & Engn, Luoyang 471023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Jingge,Feng, Di,Li, Xiaolong,et al. Effect of laser energy on laser-induced plasma confined by a hemispherical cavity[J]. SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY,2021,175:7. |
| APA | Wang, Jingge,Feng, Di,Li, Xiaolong,Li, Xinzhong,&Qian, Dongbin.(2021).Effect of laser energy on laser-induced plasma confined by a hemispherical cavity.SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY,175,7. |
| MLA | Wang, Jingge,et al."Effect of laser energy on laser-induced plasma confined by a hemispherical cavity".SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY 175(2021):7. |
入库方式： OAI收割
来源：近代物理研究所
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