Time-resolved spectroscopy of femtosecond laser-induced Cu plasma with spark discharge

Qiuyun WANG (王秋云); Anmin CHEN (陈安民); Wanpeng XU (徐万鹏); Dan ZHANG (张丹); Ying WANG (王莹); Suyu LI (李苏宇); Yuanfei JIANG (姜远飞); Mingxing JIN (金明星)

doi:10.1088/2058-6272/ab0fa6

Plasma Science and Technology > 2019 > 21(6): 65504-065504. > DOI: 10.1088/2058-6272/ab0fa6

Qiuyun WANG (王秋云), Anmin CHEN (陈安民), Wanpeng XU (徐万鹏), Dan ZHANG (张丹), Ying WANG (王莹), Suyu LI (李苏宇), Yuanfei JIANG (姜远飞), Mingxing JIN (金明星). Time-resolved spectroscopy of femtosecond laser-induced Cu plasma with spark discharge[J]. Plasma Science and Technology, 2019, 21(6): 65504-065504. DOI: 10.1088/2058-6272/ab0fa6

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Time-resolved spectroscopy of femtosecond laser-induced Cu plasma with spark discharge

¹ Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, People’s Republic of China
² Jilin Provincial Key Laboratory of Applied Atomic and Molecular Spectroscopy (Jilin University), Changchun 130012, People’s Republic of China

Funds: We acknowledge the support by National Natural Science Foundation of China (Nos. 11674128, and 11674124); Jilin Province Scientific and Technological Development Program, China (No. 20170101063JC).

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Received Date: January 24, 2018

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Abstract

Abstract

The combination of spark discharge and laser-induced breakdown spectroscopy (LIBS) is called spark discharge assisted LIBS. It works under laser-plasma triggered spark discharge mode, and shows its ability to enhance spectral emission intensity. This work uses a femtosecond laser as the light source, since femtosecond laser has many advantages in laser-induced plasma compared with nanosecond laser, meanwhile, the study on femtosecond LIBS with spark discharge is rare. Time-resolved spectroscopy of spark discharge assisted femtosecond LIBS was investigated under different discharge voltages and laser energies. The results showed that the spectral intensity was significantly enhanced by using spark discharge compared with LIBS alone. And, the spectral emission intensity using spark discharge assisted LIBS increased with the increase in the laser energy. In addition, at low laser energy, there was an obvious delay on the discharge time compared with high laser energy, and the discharge time with positive voltage was different from that with negative voltage.
- laser-induced breakdown spectroscopy,
- femtosecond laser,
- spark discharge,
- emission enhancement

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References (49)

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