Ultrafast Spectroscopy for Stand-off Detection of Explosive Devices
Abstract
We propose to develop new approaches to real-time detection of explosives, based on remote atmospheric superradiance and lasing, and stand-off coherent Raman spectroscopy. Our enhanced technique will allow rapid remote spectroscopic detection of chemicals, with the possibility of fast scanning of a wide area for Improvised Explosive Devices (IEDs) and related trace chemicals. The ultimate target species are specific chemical constituents of common ~home-made~ devices originating from materials such as fertilizer, gunpowder and hydrogen peroxide. For this purpose, we will develop methods and techniques based on approaches we have previously used for remote identification and sensing of chemicals, on the ground and in the atmosphere. The techniques developed are expected to have sufficient sensitivity for detecting explosive chemical signature of substances such as ammoniumnitrate, triacetone triperoxide (TATP), ethylene glycol, and urea nitrate, for example, at a safe remote distance. As an ultimate goal, we envision the possibility of producing a shortpulse fiber laser -based device that can be reliably deployed in the field. Implementation inthe field may utilize spectrum databases and algorithms to quickly determine the constituent molecules and atoms in a sample under investigation. Moreover, a high-energy laser-based device may provide means initiating ignition and detonation of detected explosives from asafe distance.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Aug 12, 2016
- Source ID
- N000141612578
Entities
People
- Alexei Sokolov
Organizations
- Office of Naval Research
- Texas A&M University
- United States Navy