A novel standoff simultaneous UVN + LWIR laser induced breakdown spectroscopy (LIBS) detection system for rapid in-situ chemical analysis

Clayton S. C. Yang; Feng Jin; Sudhir Trivedi; Uwe Hömmerich; Laszlo Nemes; Alan C. Samuels

doi:10.1117/12.2565159

8 May 2020 A novel standoff simultaneous UVN + LWIR laser induced breakdown spectroscopy (LIBS) detection system for rapid in-situ chemical analysis

Clayton S. C. Yang, Feng Jin, Sudhir Trivedi, Uwe Hömmerich, Laszlo Nemes, Alan C. Samuels

Author Affiliations +

Proceedings Volume 11418, Detection and Sensing of Mines, Explosive Objects, and Obscured Targets XXV; 114180I (2020) https://doi.org/10.1117/12.2565159
Event: SPIE Defense + Commercial Sensing, 2020, Online Only

Abstract

Recently, a novel optical technology, LIBS in mid-IR (MWIR/LWIR) region was developed to capture the infrared molecular emission signatures from those vibrationally excited intact sample molecules excited by laser-induced plasma. Mid-IR LIBS is the first mid-IR emission spectroscopy that can complement LIBS and Raman as rapid, in situ, and standoff chemical characterization probes without the need of any sample preparation. With all the advantages of the conventional UVN LIBS, the UVN + LWIR LIBS spectrometer can rapidly and unambiguously reveal both the elemental composition and molecular makeups of the sample that is meters away without any sample preparation required and without the need to unscramble the spectral fingerprints of targets from the irregular and cluttered background. UVN + LWIR LIBS is able to provide in-situ, real-time/near-real-time chemical detection and identification regardless of the shapes and conditions of the sample surface while requiring no need for any sample preparations. One does not need to do anything to the target sample, just point the laser at the intended target and get the spectral signatures back within a millisecond.

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Clayton S. C. Yang, Feng Jin, Sudhir Trivedi, Uwe Hömmerich, Laszlo Nemes, and Alan C. Samuels "A novel standoff simultaneous UVN + LWIR laser induced breakdown spectroscopy (LIBS) detection system for rapid in-situ chemical analysis", Proc. SPIE 11418, Detection and Sensing of Mines, Explosive Objects, and Obscured Targets XXV, 114180I (8 May 2020); https://doi.org/10.1117/12.2565159

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