Spectral Enhancement of Laser-Induced Breakdown Spectroscopy in External Magnetic Field

被引：31

作者：

Li Cheng ^{[1
]}

Gao Xun ^{[1
]}

Li Qi ^{[1
]}

Song Chao ^{[2
]}

Lin Jingquan ^{[1
]}

机构：

[1] Changchun Univ Sci & Technol, Sch Sci, Changchun 130022, Peoples R China

[2] Changchun Univ Sci & Technol, Sch Chem & Environm Engn, Changchun 130022, Peoples R China

来源：

PLASMA SCIENCE & TECHNOLOGY | 2015年 / 17卷 / 11期

基金：

中国国家自然科学基金;

关键词：

laser induced break down spectroscopy; spectral enhancement; magnetic confinement; OPTICAL-EMISSION; ELEMENTAL ANALYSIS; PLASMA; TEMPERATURE; CONFINEMENT; DIAGNOSTICS; GAS;

D O I：

10.1088/1009-0630/17/11/05

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：

In this paper the spectral enhancement of laser-induced breakdown spectroscopy (LIBS) for copper plasma in the presence of a magnetic field is investigated and the temporal- and spatial-resolved plasma emission spectra are analyzed. Experimental results show that the copper plasma atomic and ion spectra have been enhanced in the presence of the external magnetic field. In addition, the Cu I 521.82 nm spectral intensity evolution with delay time appears to have a double peak around the delay time of 2 mu s, but that of Cu II 507.57 nm has a sharp decrease because of the electron-atom three body recombination process. The plasma temperature with magnetic confinement is lower than that of the case in the absence of magnetic fields. Finally, the spectral enhancement mechanisms of laser induced breakdown spectroscopy with magnetic confinement are analyzed.

引用

页码：919 / 922

页数：4

共 22 条

[11] Generation of high-temperature and low-density plasmas for improved spectral resolutions in laser-induced breakdown spectroscopy [J].

He, X. N. ;

Hu, W. ;

Li, C. M. ;

Guo, L. B. ;

Lu, Y. F. .

OPTICS EXPRESS, 2011, 19 (11) :10997-11006

[12] A simplified spectrum standardization method for laser-induced breakdown spectroscopy measurements [J].

Li, Lizhi ;

Wang, Zhe ;

Yuan, Tingbi ;

Hou, Zongyu ;

Li, Zheng ;

Ni, Weidou .

JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY, 2011, 26 (11) :2274-2280

[13] Optical emission enhancement of laser-produced copper plasma under a steady magnetic field [J].

Li, Yu ;

Hu, Changhong ;

Zhang, Hanzhuang ;

Jiang, Zhankui ;

Li, Zhongshan .

APPLIED OPTICS, 2009, 48 (04) :B105-B110

[14] Laser-produced carbon plasma expanding in vacuum, low pressure ambient gas and nonuniform magnetic field [J].

Neogi, A ;

Thareja, RK .

PHYSICS OF PLASMAS, 1999, 6 (01) :365-371

[15]

Rai A K, 2003, APPL OPTICS

[16] Dual-pulse laser-induced breakdown spectroscopy with combinations of femtosecond and nanosecond laser pulses [J].

Scaffidi, J ;

Pender, J ;

Pearman, W ;

Goode, SR ;

Colston, BW ;

Carter, JC ;

Angel, SM .

APPLIED OPTICS, 2003, 42 (30) :6099-6106

[17] Optical emission in magnetically confined laser-induced breakdown spectroscopy [J].

Shen, X. K. ;

Lu, Y. F. ;

Gebre, T. ;

Ling, H. ;

Han, Y. X. .

JOURNAL OF APPLIED PHYSICS, 2006, 100 (05)

[18] PULSED-LASER EVAPORATION TECHNIQUE FOR DEPOSITION OF THIN-FILMS - PHYSICS AND THEORETICAL-MODEL [J].

SINGH, RK ;

NARAYAN, J .

PHYSICAL REVIEW B, 1990, 41 (13) :8843-8859

[19] Influence of magnetic field on plasma sheath and electron temperature [J].

Singha, B ;

Sarma, A ;

Chutia, J .

REVIEW OF SCIENTIFIC INSTRUMENTS, 2001, 72 (05) :2282-2287

[20] Effect of pulse delay time on a pre-ablation dual-pulse LIBS plasma [J].

Stratis, DN ;

Eland, KL ;

Angel, SM .

APPLIED SPECTROSCOPY, 2001, 55 (10) :1297-1303

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