Laser-induced breakdown spectroscopy (LIBS): a promising versatile chemical sensor technology for hazardous material detection

2005 ◽  
Vol 5 (4) ◽  
pp. 681-689 ◽  
Author(s):  
F.C. DeLucia ◽  
A.C. Samuels ◽  
R.S. Harmon ◽  
R.A. Walters ◽  
K.L. McNesby ◽  
...  
Keyword(s):  
Chemical Sensor ◽  
Sensor Technology ◽  
Laser Induced Breakdown Spectroscopy ◽  
Hazardous Material ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown ◽  
Material Detection

Comprehensive effects of oceanic pressure and temperature on in-situ LIBS signals

2021 ◽  
Author(s):  
Nan Li ◽  
Jinjia Guo ◽  
Jiaojian Song ◽  
Wangquan Ye ◽  
Yuan Lu ◽  
...  
Keyword(s):  
Environmental Factors ◽  
Deep Sea ◽  
Chemical Sensor ◽  
Laser Induced Breakdown Spectroscopy ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown ◽  
Marine Environmental

Laser-induced breakdown spectroscopy (LIBS) has been successfully developed into the oceanic chemical sensor for deep-sea exploration. However, the LIBS signals will be affected by marine environmental factors, and this effect...

scholarly journals Evaluating Laser-Induced Breakdown Spectroscopy Sensor Technology for Rapid Source Characterization of Rare Earth Elements

2019 ◽  
Vol 141 (7) ◽  
Author(s):  
Daniel A. Hartzler ◽  
Chet R. Bhatt ◽  
Jinesh C. Jain ◽  
Dustin L. McIntyre
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
High Sensitivity ◽  
Spectral Lines ◽  
Sensor Technology ◽  
Laser Induced Breakdown Spectroscopy ◽  
Source Characterization ◽  
Solid Samples ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown

A prototype laser-induced breakdown spectroscopy (LIBS) sensor is tested for the determination of rare earth elements (Eu and Yb) in liquid and solid samples. The sensor head, built using a monolithic passively Q-switched (PQSW) Nd:YAG laser, produced a 1064 nm laser beam with ns pulses and an energy of 4.2 mJ. The measurements show good calibration linearity for both Eu and Yb with R2 values above 0.99 for all analyzed spectral lines in liquid and solid samples. Limits of detection (LODs) obtained were as low as 1 ppm, which are comparable to or better than those reported previously by using table top actively Q-switched systems. This study aims to develop a high sensitivity, field deployable sensor for characterizing existing and new sources of rare earth elements.

Nanosecond laser-induced breakdown assisted by femtosecond laser pre-ionization in air: the effect on spatial resolution and continuous radiation

2020 ◽  
Vol 92 (2) ◽  
pp. 20701
Author(s):  
Bo Li ◽  
Xiaofeng Li ◽  
Zhifeng Zhu ◽  
Qiang Gao
Keyword(s):  
Femtosecond Laser ◽  
Spatial Resolution ◽  
Laser Induced Breakdown Spectroscopy ◽  
Nanosecond Laser ◽  
Breakdown Threshold ◽  
Powerful Technique ◽  
Breakdown Spectroscopy ◽  
Continuous Radiation ◽  
Laser Induced Breakdown

Laser-induced breakdown spectroscopy (LIBS) is a powerful technique for quantitative diagnostics of gases. The spatial resolution of LIBS, however, is limited by the volume of plasma. Here femtosecond-nanosecond dual-pulsed LIBS was demonstrated. Using this method, the breakdown threshold was reduced by 80%, and decay of continuous radiation was shortened. In addition, the volume of the plasma was shrunk by 85% and hence, the spatial resolution of LIBS was significantly improved.

Sign in / Sign up

Export Citation Format

Share Document