Enhancement and stabilization of plasma using collinear long-short double-pulse laser-induced breakdown spectroscopy

Abstract A collinear long-short dual-pulse laser-induced breakdown spectroscopy (DP-LIBS) method was employed to enhance and stabilize the laser-induced plasma from steel sample. The long-pulse-width laser beam with the pulse width of 60 μs was generated by a Nd: YAG laser which was operated at FR (free running) mode. The comparative experiments were carried out between single pulse LIBS (SP-LIBS) and long-short DP-LIBS. The recorded results showed that the emission intensities and the temperature of plasma were enhanced by long-short DP-LIBS. The plasma images showed that the plasma was bigger and had a longer lifetime in long-short DP-LIBS situation. Through the calculation of time-resolved plasma temperature and intensity ratio, it can be concluded that the plasma was stabilized by the long-pulse-width laser beam. The long-short DP-LIBS method also generated the stable plasma condition from the samples with different initial temperatures, which overcame the difficulties of LIBS in the online measurement for steel production line.

[1]  Ali Khumaeni,et al.  Enhancement of LIBS emission using antenna-coupled microwave. , 2013, Optics express.

[2]  G. Cristoforetti,et al.  Three-dimensional analysis of laser induced plasmas in single and double pulse configuration , 2004 .

[3]  Jagdish P. Singh,et al.  Laser-induced breakdown spectroscopy (LIBS) , 2011, Analytical and bioanalytical chemistry.

[4]  V. Kiris,et al.  Comparison of two laser-induced breakdown spectroscopy techniques for total carbon measurement in soils , 2009 .

[5]  P. Hayden,et al.  Inter-pulse delay optimization in dual-pulse laser induced breakdown vacuum ultraviolet spectroscopy of a steel sample in ambient gases at low pressure , 2013 .

[6]  A. Robledo-Martinez,et al.  Optimal emission enhancement in orthogonal double-pulse laser-induced breakdown spectroscopy , 2015 .

[7]  Baojin Peng,et al.  Laser ablation assisted spark induced breakdown spectroscopy on soil samples , 2010 .

[8]  Jill R. Scott,et al.  Temperature effect on laser-induced breakdown spectroscopy spectra of molten and solid salts , 2014 .

[9]  V. Babushok,et al.  Double pulse laser ablation and plasma: Laser induced breakdown spectroscopy signal enhancement , 2006 .

[10]  Roberta Fantoni,et al.  Enhancement of LIBS signal by spatially confining the laser-induced plasma , 2009 .

[11]  Yang Li,et al.  Application of Stand-off Double-Pulse Laser-Induced Breakdown Spectroscopy in Elemental Analysis of Magnesium Alloy , 2015 .

[12]  Reinhard Noll,et al.  Laser-Induced Breakdown Spectroscopy: Fundamentals and Applications , 2012 .

[13]  Zhiwei Sun,et al.  Microwave assisted laser-induced breakdown spectroscopy at ambient conditions , 2016 .

[14]  M. Richardson,et al.  Nd:YAG-CO(2) double-pulse laser induced breakdown spectroscopy of organic films. , 2010, Optics express.

[15]  Laizhi Sui,et al.  Enhancement of laser-induced Fe plasma spectroscopy with dual-wavelength femtosecond double-pulse , 2016 .

[16]  E. Grifoni,et al.  Laser-based continuous monitoring and resolution of steel grades in sequence casting machines , 2015 .

[17]  N. B. Zorov,et al.  Comparison of single- and multivariate calibration for determination of Si, Mn, Cr and Ni in high-alloyed stainless steels by laser-induced breakdown spectrometry , 2014 .

[18]  Shudi Zhang,et al.  Laser-induced plasma temperature , 2014 .

[19]  Di Tian,et al.  A Review of Laser-Induced Breakdown Spectroscopy for Analysis of Geological Materials , 2015 .

[20]  Edwin L. Dottery,et al.  Enhancement of Nd:YAG LIBS emission of a remote target using a simultaneous CO(2) laser pulse. , 2007, Optics express.

[21]  S. Winkelmann,et al.  Space- and time-resolved dynamics of plasmas generated by laser double pulses interacting with metallic samples , 2004 .

[22]  David W. Hahn,et al.  Double-pulse and single-pulse laser-induced breakdown spectroscopy for distinguishing between gaseous and particulate phase analytes , 2010 .

[23]  Martin Richardson,et al.  Elemental analysis by microwave-assisted laser-induced breakdown spectroscopy: Evaluation on ceramics , 2010 .

[24]  F. Shiou,et al.  Emission Characteristics of Laser-Induced Plasma Using Collinear Long and Short Dual-Pulse Laser-Induced Breakdown Spectroscopy (LIBS) , 2017, Applied spectroscopy.

[25]  Maogen Su,et al.  A Comparative Study of the Laser Induced Breakdown Spectroscopy in Single- and Collinear Double-Pulse Laser Geometry , 2014 .

[26]  Xun Gao,et al.  Pre-ablation laser parameter effects on the spectral enhancement of 1064nm/1064nm dual-pulse laser induced breakdown spectroscopy , 2016 .

[27]  H. Sobral,et al.  Photoacoustic and spectroscopic characterization of the ablation process in orthogonal double-pulse configuration , 2011 .

[28]  Ahmed Hassanein,et al.  Role of laser pre-pulse wavelength and inter-pulse delay on signal enhancement in collinear double-pulse laser-induced breakdown spectroscopy , 2013 .

[29]  M. A. Baig,et al.  A comparative study of single and double pulse laser induced breakdown spectroscopy , 2009 .

[30]  J. Heitz,et al.  Calibration-free analysis of steel slag by laser-induced breakdown spectroscopy with combined UV and VIS spectra , 2015 .

[31]  H. Sobral,et al.  Time resolved study of the emission enhancement mechanisms in orthogonal double-pulse laser-induced breakdown spectroscopy , 2013 .

[32]  Stefano Legnaioli,et al.  Spectroscopic and shadowgraphic analysis of laser induced plasmas in the orthogonal double pulse pre-ablation configuration , 2006 .

[33]  G. Cristoforetti,et al.  Characterization of a collinear double pulse laser-induced plasma at several ambient gas pressures by spectrally- and time-resolved imaging , 2005 .

[34]  Edwin L. Dottery,et al.  Enhanced temperature and emission from a standoff 266 nm laser initiated LIBS plasma using a simultaneous 10.6 microm CO2 laser pulse. , 2009, Optics express.

[35]  Yoshihiro Deguchi,et al.  Industrial Applications of Laser Diagnostics , 2011 .

[36]  R. Noll,et al.  Laser-induced breakdown spectroscopy—From research to industry, new frontiers for process control , 2008 .

[37]  S. S. Harilal,et al.  Electron-ion relaxation time dependent signal enhancement in ultrafast double-pulse laser-induced breakdown spectroscopy , 2013, Applied Physics Letters.

[38]  Ahmed Hassanein,et al.  The importance of longer wavelength reheating in dual-pulse laser-induced breakdown spectroscopy , 2012, Applied Physics B.

[39]  Yongfeng Lu,et al.  Correction: Sensitivity improvement in the detection of V and Mn elements in steel using laser-induced breakdown spectroscopy with ring-magnet confinement , 2014, Journal of Analytical Atomic Spectrometry.

[40]  S. S. Harilal,et al.  Improvements in discrimination of bulk and trace elements in long-wavelength double pulse LIBS , 2014 .

[41]  A. Hussain,et al.  The Effect of an External Magnetic Field on the Plume Expansion Dynamics of Laser-Induced Aluminum Plasma , 2015 .

[42]  Yuan Lu,et al.  UV fs–ns double-pulse laser induced breakdown spectroscopy for high spatial resolution chemical analysis , 2013 .