Dynamics and density distribution of laser-produced plasma using optical interferometry

doi:10.1063/1.5028414

	Dynamics and density distribution of laser-produced plasma using optical interferometry
	Cao, S. Q.1; Su, M. G.1,2,3; Jiao, Z. H.1; Min, Q.1; Sun, D. X.1,2,3; Ma, P. P.1; Wang, K. P.1; Dong, C. Z.1,2,3
刊名	PHYSICS OF PLASMAS
	2018-06
卷号	25 期号:6 页码:063302
ISSN号	1070-664X
DOI	10.1063/1.5028414
英文摘要	Dynamic evolution and spatio-temporally resolved density profiles of laser-produced plasma in air were investigated using optical interferometry. A series of interferograms were obtained with a pulse energy of 50 mJ and delay times from 50 ns to 2650 ns. With increasing delay time, the expansion profiles of the shock wave change from a flat ellipsoid to a spheroid. The phase shift has been extracted using a two-dimensional (2D) fast Fourier transformation algorithm and the radial distribution of the refractive index is calculated using the inverse Abel transformation assuming that the plasma is axisymmetric along the direction of the incident laser beam. Interferograms of the 2D expansion and evolution of the plasma plume and the shock wave were obtained by exploiting the spatial dependence of the refractive index. The electron densities in the plasma region and the air densities in the compressed air region were calculated from the refractive-index distributions obtained. Our results provided further understanding of the expansion and the dynamic evolution of the laser-produced plasma and the shock wave and of the spatio-temporal evolution of the density of plasma in air. Published by AIP Publishing.
资助项目	Students Innovation Ability Program Support Project of Northwest Normal University[CX2018Y153]
WOS关键词	SHOCK-WAVE ; ABLATION ; AIR ; ALUMINUM ; TEMPERATURE ; PLUMES ; DRIVEN
WOS研究方向	Physics
语种	英语
出版者	AMER INST PHYSICS
WOS记录号	WOS:000437193700097
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/59674]
专题	中国科学院近代物理研究所
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.Northwest Normal Univ, Joint Lab Atom & Mol Phys, Lanzhou 730070, Peoples R China 3.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730070, Peoples R China
推荐引用方式 GB/T 7714	Cao, S. Q.,Su, M. G.,Jiao, Z. H.,et al. Dynamics and density distribution of laser-produced plasma using optical interferometry[J]. PHYSICS OF PLASMAS,2018,25(6):063302.
APA	Cao, S. Q..,Su, M. G..,Jiao, Z. H..,Min, Q..,Sun, D. X..,...&Dong, C. Z..(2018).Dynamics and density distribution of laser-produced plasma using optical interferometry.PHYSICS OF PLASMAS,25(6),063302.
MLA	Cao, S. Q.,et al."Dynamics and density distribution of laser-produced plasma using optical interferometry".PHYSICS OF PLASMAS 25.6(2018):063302.