Enhancement of Laser-Induced Breakdown Spectroscopy (LIBS) Detection Limit Using a Low-Pressure and Short-Pulse Laser-Induced Plasma Process

2013 ◽  
Vol 67 (11) ◽  
pp. 1242-1251 ◽  
Author(s):  
Zhen Zhen Wang ◽  
Yoshihiro Deguchi ◽  
Masakazu Kuwahara ◽  
Jun Jie Yan ◽  
Ji Ping Liu
Keyword(s):  
Detection Limit ◽  
Pulse Laser ◽  
Short Pulse ◽  
Low Pressure ◽  
Laser Induced Breakdown Spectroscopy ◽  
Plasma Process ◽  
Laser Induced Plasma ◽  
Breakdown Spectroscopy ◽  
Short Pulse Laser ◽  
Laser Induced Breakdown

Sensitive detection of iodine by low pressure and short pulse laser-induced breakdown spectroscopy (LIBS)

2014 ◽  
Vol 29 (6) ◽  
pp. 1082-1089 ◽  
Author(s):  
Xiaobo Zhang ◽  
Yoshihiro Deguchi ◽  
Zhenzhen Wang ◽  
Junjie Yan ◽  
Jiping Liu
Keyword(s):  
Pulse Laser ◽  
Short Pulse ◽  
Low Pressure ◽  
Sensitive Detection ◽  
Laser Induced Breakdown Spectroscopy ◽  
Breakdown Spectroscopy ◽  
Short Pulse Laser ◽  
Laser Induced Breakdown ◽  
Detection Characteristics

Iodine in buffer gases of air and N2 was measured under various conditions including different wavelengths, laser powers, pulse widths and pressures to compare the detection characteristics of low pressure and short pulse LIBS.

scholarly journals Atomic and molecular LIBS spectra of Al alloys and composite materials for nanosecond and microsecond excitation

2017 ◽  
Vol 9 (4) ◽  
pp. 116
Author(s):  
Roman Ostrowski ◽  
Wojciech Skrzeczanowski ◽  
Antoni Rycyk ◽  
Krzysztof Czyż ◽  
Antoni Sarzyński ◽  
...  
Keyword(s):  
Multivariate Calibration ◽  
Short Pulse ◽  
Al Alloys ◽  
Laser Induced Breakdown Spectroscopy ◽  
Pulse Excitation ◽  
Element Analysis ◽  
Laser Induced Plasma ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown

Spectral investigations in the UV-VIS range of selected Al alloys and composites, used in the construction of armament components as well as drones, were performed using LIBS technique. Two Nd:YAG lasers were applied: a short pulse 4 ns 60 mJ laser and a long pulse 200/400 (up to 1000) us (~ 2/4 up to 10 J) laser. In experiments with a short laser pulse only atomic spectra were observed while for long pulses, also molecular transitions have been recorded. Electron temperatures of created plasma were found on the base of Boltzmann law. Temperatures are clearly higher for short pulse excitation. Full Text: PDF ReferencesA. Miziolek, V. Palleschi and I. Schechter, Laser-Induced Breakdown Spectroscopy (Cambridge, Cambridge University Press 2006). CrossRef M. Sabsabi and P. Cielo, "Quantitative Analysis of Aluminum Alloys by Laser-Induced Breakdown Spectroscopy and Plasma Characterization", Appl. Spectrosc. 49, 499 (1995). CrossRef D.L. Death, A.P. Cunningham, and L.J. Pollard, "Multi-element analysis of iron ore pellets by Laser-induced Breakdown Spectroscopy and Principal Components Regression", Spectrochim. Acta B, 63, 763 (2008). CrossRef S. Laville, M. Sabsabi and F. Doucet, "Multi-elemental analysis of solidified mineral melt samples by Laser-Induced Breakdown Spectroscopy coupled with a linear multivariate calibration", Spectrochim. Acta B, 62, 1557 (2007), CrossRef D.M. Surmick, C.G, Parigger, "Aluminum Monoxide Emission Measurements in a Laser-Induced Plasma", Applied Spectroscopy, 2015, V.68, No.9, P.992-996. CrossRef J.B. Sirven, B. Bousquet, L. Canioni and L. Sarger,"Laser-Induced Breakdown Spectroscopy of Composite Samples: Comparison of Advanced Chemometrics Methods", Anal. Chem. 78, 1462 (2006). CrossRef E.J. Judge, G. Heck, E.B. Cerkez and R. J. Levis, "Discrimination of Composite Graphite Samples Using Remote Filament-Induced Breakdown Spectroscopy", Anal. Chem. 81, 2658 (2009). CrossRef L.M. Cabalin and J.J. Laserna, "Experimental determination of laser induced breakdown thresholds of metals under nanosecond Q-switched laser operation", Spectrochim. Acta B, 53, 723 (1998). CrossRef T.A. Labutin, A.M. Popov, V.N. Lednev and N.B. Zorov, "Correlation between properties of a solid sample and laser-induced plasma parameters", Spectrochim. Acta B, 64, 938 (2009). CrossRef J.S. Cowpe, R.D. Moorehead, D. Moser, J.S. Astin, and S. Karthikeyan, "Hardness determination of bio-ceramics using Laser-Induced Breakdown Spectroscopy", Spectrochim. Acta B, 66, 290 (2011). CrossRef G. Cristoforetti, , S. Legnaioli, V. Palleschi, A. Salvetti, and E. Tognoni, "Effect of target composition on the emission enhancement observed in Double-Pulse Laser-Induced Breakdown Spectroscopy", Spectrochim. Acta B, 63, 312 (2008). CrossRef

Double pulse laser induced breakdown spectroscopy with Gaussian and multimode beams

2016 ◽  
Vol 124 ◽  
pp. 47-55 ◽  
Author(s):  
V.N. Lednev ◽  
S.M. Pershin ◽  
A.F. Bunkin ◽  
A.A. Samokhvalov ◽  
V.P. Veiko ◽  
...  
Keyword(s):  
Pulse Laser ◽  
Double Pulse ◽  
Laser Induced Breakdown Spectroscopy ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown ◽  
Multimode Beams ◽  
Double Pulse Laser
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