Jin, F, Trivedi, SB, Yang, CS et al. (4 more authors) (2016) Chemical and explosive detection with long-wave infrared laser induced breakdown spectroscopy. In: Proceedings of SPIE - The International Society for Optical Engineering. 17th Meeting of the Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing Conference met as part of the SPIE Defense + Commercial Sensing (DCS) Symposium, 18-20 Apr 2016, Baltimore, MD. Society of Photo-optical Instrumentation Engineers
Abstract
Conventional laser induced breakdown spectroscopy (LIBS) mostly uses silicon-based detectors and measures the atomic emission in the UV-Vis-NIR (UVN) region of the spectrum. It can be used to detect the elements in the sample under test, such as the presence of lead in the solder for electronics during RoHS compliance verification. This wavelength region, however, does not provide sufficient information on the bonding between the elements, because the molecular vibration modes emit at longer wavelength region. Measuring long-wave infrared spectrum (LWIR) in a LIBS setup can instead reveal molecular composition of the sample, which is the information sought in applications including chemical and explosive detection and identification. This paper will present the work and results from the collaboration of several institutions to develop the methods of LWIR LIBS for chemical/explosive/pharmaceutical material detection/identification, such as DMMP and RDX, as fast as using a single excitation laser pulse. In our latest LIBS setup, both UVN and LWIR spectra can be collected at the same time, allowing more accurate detection and identification of materials.
Metadata
Item Type: | Proceedings Paper |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | Jin, F, Trivedi, SB, Yang, CS et al. (4 more authors) (2016) Chemical and explosive detection with long-wave infrared laser induced breakdown spectroscopy. In: Proceedings of SPIE - The International Society for Optical Engineering. 17th Meeting of the Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing Conference met as part of the SPIE Defense + Commercial Sensing (DCS) Symposium, 18-20 Apr 2016, Baltimore, MD. Society of Photo-optical Instrumentation Engineers Copyright 2016 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited. |
Keywords: | laser induced breakdown spectroscopy; long-wave infrared; chemical and explosive detection; molecular vibrational spectroscopy |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Chemical & Process Engineering (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 06 Nov 2019 14:41 |
Last Modified: | 08 Nov 2019 06:20 |
Status: | Published |
Publisher: | Society of Photo-optical Instrumentation Engineers |
Identification Number: | 10.1117/12.2223427 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:153095 |