Numerical simulation of laser-induced plasma in background gas considering multiple interaction processes

Junxiao WANG (王俊霄); Lei ZHANG (张雷); Shuqing WANG (王树青); Maogen SU (苏茂根); Duixiong SUN (孙对兄); Jianghua HAN (韩江华); Guofu XIA (夏国富); Chenzhong DONG (董晨钟); Qi MIN (敏琦); Weiguang MA (马维光); Lei DONG (董磊); Wangbao YIN (尹王保); Liantuan XIAO (肖连团); Suotang JIA (贾锁堂)

doi:10.1088/2058-6272/abdda3

Plasma Science and Technology > 2021 > 23(3): 35001-035001. > DOI: 10.1088/2058-6272/abdda3

Junxiao WANG (王俊霄), Lei ZHANG (张雷), Shuqing WANG (王树青), Maogen SU (苏茂根), Duixiong SUN (孙对兄), Jianghua HAN (韩江华), Guofu XIA (夏国富), Chenzhong DONG (董晨钟), Qi MIN (敏琦), Weiguang MA (马维光), Lei DONG (董磊), Wangbao YIN (尹王保), Liantuan XIAO (肖连团), Suotang JIA (贾锁堂). Numerical simulation of laser-induced plasma in background gas considering multiple interaction processes[J]. Plasma Science and Technology, 2021, 23(3): 35001-035001. DOI: 10.1088/2058-6272/abdda3

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Numerical simulation of laser-induced plasma in background gas considering multiple interaction processes

¹ State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Shanxi University, Taiyuan 030006, People's Republic of China
² Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 030006, People's Republic of China
³ National Energy R&D Center of Petroleum Refining Technology (RIPP, SINOPEC), People's Republic of China
⁴ Key Laboratory of Atomic and Molecular Physics & Functional Material of Gansu Province, College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070, People's Republic of China

Funds: This work was supported by National Key R&D Program of China (No. 2017YFA0304203); National Energy R&D Center of Petroleum Refining Technology (RIPP, SINOPEC); Changjiang Scholars and Innovative Research Team in University of Ministry of Education of China (No. IRT_17R70); National Natural Science Foundation of China (NSFC) (Nos. 61975103, 61875108, 61775125, 11434007); Major Special Science and Technology Projects in Shanxi (No. 201804D131036); 111 project (No. D18001); Fund for Shanxi ‘1331KSC’.

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Received Date: November 03, 2020
Revised Date: January 18, 2021
Accepted Date: January 18, 2021

Graphical Abstract

Abstract

Abstract

Laser-induced plasma is often produced in the presence of background gas, which causes some new physical processes. In this work, a two-dimensional axisymmetric radiation fluid dynamics model is used to numerically simulate the expansion process of plasma under different pressures and gases, in which the multiple interaction processes of diffusion, viscosity and heat conduction between the laser ablated target vapor and the background gas are further considered, and the spatio-temporal evolutions of plasma parameters (species number density, expansion velocity, size and electron temperature) as well as the emission spectra are obtained. The consistency between the actual and simulated spectra of aluminum plasma in 1 atm argon verifies the correctness of the model and the numerical simulation, thus providing a refinement analysis method for the basic research of plasma expansion in gases and the application of laser-induced breakdown spectroscopy.
- laser-induced plasma,
- radiation fluid dynamics model,
- diffusion,
- viscosity,
- heatconduction

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References (34)

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