Laser-Based Optical Detection of Explosives

Laser-Based Optical Detection of Explosives offers a comprehensive review of past, present, and emerging laser-based methods for the detection of a variety of explosives. This book: - Considers laser propagation safety and explains standard test material preparation for standoff optical-based detection system evaluation - Explores explosives detection using deep ultraviolet native fluorescence, Raman spectroscopy, laser-induced breakdown spectroscopy, reflectometry, and hyperspectral imaging - Examines photodissociation followed by laser-induced fluorescence, photothermal methods, cavity-enhanced absorption spectrometry, and short-pulse laser-based techniques - Describes the detection and recognition of explosives using terahertz-frequency spectroscopic techniques Each chapter is authored by a leading expert on the respective technology, and is structured to supply historical perspective, address current advantages and challenges, and discuss novel research and applications. Readers are left with an in-depth understanding and appreciation of each technology's capabilities and potential for standoff hazard detection.

Paul M. Pellegrino is chief of the Optics and Photonics Integration Branch in the Sensors and Electron Devices Directorate at the United States Army Research Laboratory (ARL), Adelphi, Maryland. He has been with the ARL as a physicist for 17 years. In addition to his branch chief duties, he actively participates in numerous spectroscopic efforts for hazardous material sensing. He has more than 20 years of experience in optics, physics, and computational physics, with an emphasis on the application of novel spectroscopy and optical transduction for chemical and biological sensing. Widely published, Dr. Pellegrino is a member of the OSA, SPIE, and SAS. Ellen L. Holthoff is a research chemist in the Sensors and Electron Devices Directorate at the United States Army Research Laboratory (ARL), Adelphi, Maryland, where her experimental work includes the development of MEMS-scale photo-acoustic sensor platforms for gas detection, molecularly imprinted polymers for chemical and biological sensing applications, and drop-on-demand ink-jet printing for sample standardization. Her other research interests include sol-gel chemistry and fluorescence spectroscopy. Dr. Holthoff held an Oak Ridge Associated Universities Postdoctoral Fellowship at the ARL. She has authored and coauthored more than 30 research papers and conference proceedings as well as three book chapters and numerous internal army reports. Mikella E. Farrell is a research chemist in the Sensors and Electron Devices Directorate at the United States Army Research Laboratory, Adelphi, Maryland, where her work has included developing SERS substrates for army-specific biological and hazard sensing, biomimetic hazard sensing employing designed peptides, the fabrication of a nanoscale SERS imaging probe, and transitioning a standardized technique for the fabrication of drop-on-demand hazard test evaluation coupons. She also has been involved with supporting Defense Advanced Research Projects Agency SERS Fundamentals programs, university SERS-based research programs, and the evaluation of fielded standoff hazard detection systems. She is widely published and holds a United States patent.

Laser-Based Optical Detection of Explosives. Additional Considerations for Laser-Based Detection Systems at Standoff Ranges. Standards for Standoff Optical-Based Explosives Detection. Explosives Detection and Analysis by Fusing Deep Ultraviolet Native Fluorescence and Resonance Raman Spectroscopy. Raman Detection of Explosives. Standoff Detection of Explosive Residue via Photodissociation Followed by Laser-Induced Fluorescence. Detection of Explosives Using Laser-Induced Breakdown Spectroscopy (LIBS). Active Mid-Infrared Reflectometry and Hyperspectral Imaging. Infrared Spectroscopy of Explosives Residues: Measurement Techniques and Spectral Analysis. Photothermal Methods for Laser-Based Detection of Explosives. Detecting Explosives and Chemical Weapons Using Cavity-Enhanced Absorption Spectrometry. Detection and Recognition of Explosives Using Terahertz-Frequency Spectroscopic Techniques. Detection of Explosives and Energetic Components via Short-Pulse Laser-Based Techniques.