Simultaneous detection of a submerged Cu target and bulk water by long-pulse laser-induced breakdown spectroscopy

2021 ◽  
Author(s):  
Nan Li ◽  
Kota Tanabe ◽  
Naoya Nishi ◽  
Ronger Zheng ◽  
Tetsuo Sakka
Keyword(s):  
Pulse Laser ◽  
Simultaneous Detection ◽  
Bulk Water ◽  
Simultaneous Analysis ◽  
Laser Induced Breakdown Spectroscopy ◽  
Detection Capability ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown ◽  
Long Pulse

The detection capability of long-pulse laser-induced breakdown spectroscopy (LIBS) for simultaneous analysis of submerged solids and bulk water has been investigated with a Cu target immersed in a CaCl2 solution....

Signal enhancement in underwater long-pulse laser-induced breakdown spectroscopy for the analysis of bulk water

2021 ◽  
Author(s):  
Nan Li ◽  
Naoya Nishi ◽  
Ronger Zheng ◽  
Tetsuo Sakka
Keyword(s):  
Pulse Laser ◽  
Bulk Water ◽  
Signal Enhancement ◽  
Laser Induced Breakdown Spectroscopy ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown ◽  
Underwater Laser ◽  
Long Pulse

Significant signal enhancement in underwater laser-induced breakdown spectroscopy for the analysis of bulk water by using a long ns pulse.

Spatiotemporal and spectroscopic investigations of the secondary plasma generated during double-pulse laser-induced breakdown in bulk water

2020 ◽  
Vol 35 (12) ◽  
pp. 2880-2892
Author(s):  
Boyang Xue ◽  
Ye Tian ◽  
Nan Li ◽  
Qingyang Li ◽  
Yuan Lu ◽  
...  
Keyword(s):  
Pulse Laser ◽  
Elemental Analysis ◽  
Bulk Water ◽  
Double Pulse ◽  
Laser Induced Breakdown Spectroscopy ◽  
Breakdown Spectroscopy ◽  
Spectroscopic Investigations ◽  
Laser Induced Breakdown ◽  
Secondary Plasma ◽  
Double Pulse Laser

Double-pulse laser-induced breakdown spectroscopy (DP-LIBS) has been demonstrated to enable efficient elemental analysis of bulk water.

Improved Analysis of Manganese in Steel Samples Using Collinear Long–Short Double Pulse Laser-Induced Breakdown Spectroscopy (LIBS)

2018 ◽  
Vol 73 (2) ◽  
pp. 152-162 ◽  
Author(s):  
Minchao Cui ◽  
Yoshihiro Deguchi ◽  
Zhenzhen Wang ◽  
Seiya Tanaka ◽  
Yuki Fujita ◽  
...  
Keyword(s):  
Pulse Laser ◽  
Double Pulse ◽  
Analytical Performance ◽  
Laser Induced Breakdown Spectroscopy ◽  
Detection Ability ◽  
Breakdown Spectroscopy ◽  
Measurement Results ◽  
Laser Induced Breakdown ◽  
Long Pulse ◽  
Double Pulse Laser

A long–short double pulse laser-induced breakdown spectroscopy (long–short DP-LIBS) method was employed to improve the analytical performance of LIBS for the measurement of manganese in steel samples. The long pulse with a duration of 60 μs was generated using a neodymium-doped yttrium aluminum garnet (Nd:YAG) laser which was operated at free-running (FR) mode. To investigate the detection ability without sample preparation, the steel washers were tested using single-pulse LIBS (SP-LIBS) and long–short DP-LIBS, respectively. The measurement results show that long–short DP-LIBS was able to record clear spectra from the steel washers with a surface layer. Through the observation on the laser craters with a scanning electron microscope (SEM), the results suggest that the improvement in detection ability can be attributed to the pre-irradiation effect of long-pulse laser beam. Next, the analytical performance for quantitative measurement of manganese was evaluated employing ten standard steel samples. The results show that the linearity fit (R2) of the calibration curve is 0.988 for long–short DP-LIBS, whereas, R2 is only 0.810 for SP-LIBS under the same measurement conditions. The repeated measurement results show that the average relative standard deviation (RSD) of the tested samples is 29.3% for SP-LIBS and is 10.5% for long–short DP-LIBS. The prediction results also show that the average relative error of prediction (REP) is 94.9% for SP-LIBS and is 4.9% for long–short DP-LIBS.

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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