Laser detection of explosives based on differential absorption and scattering. (October 2018)

• Record Type: Journal Article
• Authors: Ayrapetyan, V.S.; Fomin, P.A.
• Is Part Of: Optics & laser technology. Volume 106(2018)
• Page Start: 202
• Page End: 208
• Publication Date: 2018-10
• Subjects: Parametric laser -- Explosives -- Nonlinear crystal -- Differential absorption and scattering; Optics -- Periodicals; Lasers -- Periodicals; Electronic journals; 621.366
• DOI: 10.1016/j.optlastec.2018.04.001
• Languages: English
• ISSNs: 0030-3992

Abstract

Highlights: infrared laser system for standoff detection of trace gases is developed. differential absorption and scattering are used for detection of condensed explosives. infrared optical oscillator is most suitable for detection of condensed explosives. Abstract: A multifunctional Infrared (IR) parametric laser system for standoff detection and identification of trace atmospheric gases, including explosives and chemically aggressive substances has been developed and tested. The method can detect vapors of condensed explosives. Computational and experimental studies on the standoff determination of spectroscopic parameters of known explosives such as TNT, RDX, and PETN have been performed. It has been shown that the multifunctional IR optical parametric oscillator is suitable for high-sensitivity detection (∼1 ppm) of these substances using the method of differential absorption and scattering.