Spatio-temporal evolution of a nanosecond laser produced Zn plasma

被引：0

作者：

Varghese, Nikhil ^{[1
]}

Purushothaman, Achu ^{[1
]}

Benny, Cyril ^{[2
,3
]}

Rao, Kavya H. ^{[4
]}

Smijesh, N. ^{[1
]}

Philip, Reji ^{[2
]}

机构：

[1] Mahatma Gandhi Univ, Sch Pure & Appl Phys, Ultrafast Opt Grp, PD Hills, Kottayam 686560, Kerala, India

[2] Raman Res Inst, Ultrafast & Nonlinear Opt Lab, Light & Matter Phys Grp, Bangalore 560080, Karnataka, India

[3] Univ Rostock, Inst Phys, D-18059 Rostock, Germany

[4] Extreme Light Infrastructure ERIC, ELI Beamlines Facil, Za Radnici 835, Dolni Brezany 25241, Czech Republic

来源：

PHYSICS OF PLASMAS | 2024年 / 31卷 / 12期

关键词：

INDUCED BREAKDOWN SPECTROSCOPY; ELECTRON-DENSITY; ABLATION; DYNAMICS; TEMPERATURE; EXPANSION; PLUMES; AL;

D O I：

10.1063/5.0227681

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

Optical emission spectroscopy of a nanosecond (ns) laser produced plasma (LPP) is carried out to investigate the effects of irradiation energy and ambient pressure on the spatio-temporal evolution of the intensity and linewidth of emissions in an expanding plume. The linewidth of neutrals ( delta lambda(n)) increases as a function of pressure for all axial distances up to 4 mm from the target surface. The oscillating behavior of delta lambda(n) upon increasing ambient pressure for femtosecond (fs) and picosecond (ps) LPPs in the pressure range of 0.5 Torr to 50 Torr is absent in the present case. Hence, the ambiguities in calculating the number density using delta lambda(n) is invalid for ns LPPs.

引用

页数：6

共 50 条

[41] Study on the spatio-temporal evolution and influencing factors of farmland abandonment on a county scale
Wang, Cheng
Su, Yue
He, Shan
Xie, Yan
Xia, Panpan
Cui, Yanglin
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH, 2023, 30 (30) : 75314 - 75331
[42] Modelling the spatio-temporal evolution of 3H in the waters of the River Tagus
Baeza, A
García, E
Miró, C
Periáñez, R
JOURNAL OF ENVIRONMENTAL RADIOACTIVITY, 2006, 86 (03) : 367 - 383
[43] Spatio-temporal correlations in Coulomb clusters
Ash, Biswarup
Chakrabarti, J.
Ghosal, Amit
EPL, 2016, 114 (04)
[44] Spatio-temporal chaos in a chemotaxis model
Painter, Kevin J.
Hillen, Thomas
PHYSICA D-NONLINEAR PHENOMENA, 2011, 240 (4-5) : 363 - 375
[45] Spatiotemporal evolution of emission and absorption signatures in a laser-produced plasma
Harilal, S. S.
Kautz, E. J.
Phillips, M. C.
JOURNAL OF APPLIED PHYSICS, 2022, 131 (06)
[46] Spatio-temporal autocorrelation measures for nonstationary series: A new temporally detrended spatio-temporal Moran's index
Shen, Chenhua
Li, Chaoling
Si, Yali
PHYSICS LETTERS A, 2016, 380 (1-2) : 106 - 116
[47] Modeling of laser produced Zn plasma with detailed electron impact fine structure excitation cross-sections
Gupta, Shivam
Gangwar, Reetesh Kumar
Srivastava, Rajesh
PLASMA SOURCES SCIENCE & TECHNOLOGY, 2019, 28 (09)
[48] Theoretical aspect of enhancement and saturation in emission from laser produced plasma
Rai, V. N.
LASER AND PARTICLE BEAMS, 2012, 30 (04) : 621 - 631
[49] Spatio-temporal evolution and driving forces of urban gravity centers and ecological security risk gravity centers in China
Chen, Peng
Duan, Jiaojiao
Wang, Yihan
ECOLOGICAL INDICATORS, 2025, 170
[50] Dynamics of neutrals and ions in an ultrafast laser produced Zn plasma
Smijesh, N.
Rao, Kavya H.
Philip, Reji
PHYSICS OF PLASMAS, 2015, 22 (03)

← 1 2 3 4 5 →