Share Email Print
cover

Proceedings Paper

Infrared photothermal imaging of trace explosives on relevant substrates
Author(s): Christopher A. Kendziora; Robert Furstenberg; Michael Papantonakis; Viet Nguyen; James Borchert; Jeff Byers; R. Andrew McGill
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

We are developing a technique for the stand-off detection of trace explosives on relevant substrate surfaces using photo-thermal infrared (IR) imaging spectroscopy (PT-IRIS). This approach leverages one or more compact IR quantum cascade lasers, tuned to strong absorption bands in the analytes and directed to illuminate an area on a surface of interest. An IR focal plane array is used to image the surface and detect small increases in thermal emission upon laser illumination. The PT-IRIS signal is processed as a hyperspectral image cube comprised of spatial, spectral and temporal dimensions as vectors within a detection algorithm. The ability to detect trace analytes on relevant substrates is critical for stand-off applications, but is complicated by the optical and thermal analyte/substrate interactions. This manuscript describes recent PT-IRIS experimental results and analysis for traces of RDX, TNT, ammonium nitrate (AN) and sucrose on relevant substrates (steel, polyethylene, glass and painted steel panels). We demonstrate that these analytes can be detected on these substrates at relevant surface mass loadings (10 μg/cm2 to 100 μg/cm2) even at the single pixel level.

Paper Details

Date Published: 7 June 2013
PDF: 15 pages
Proc. SPIE 8709, Detection and Sensing of Mines, Explosive Objects, and Obscured Targets XVIII, 87090O (7 June 2013); doi: 10.1117/12.2015970
Show Author Affiliations
Christopher A. Kendziora, U.S. Naval Research Lab. (United States)
Robert Furstenberg, U.S. Naval Research Lab. (United States)
Michael Papantonakis, U.S. Naval Research Lab. (United States)
Viet Nguyen, U.S. Naval Research Lab. (United States)
James Borchert, U.S. Naval Research Lab. (United States)
Jeff Byers, U.S. Naval Research Lab. (United States)
R. Andrew McGill, U.S. Naval Research Lab. (United States)


Published in SPIE Proceedings Vol. 8709:
Detection and Sensing of Mines, Explosive Objects, and Obscured Targets XVIII
J. Thomas Broach; Jason C. Isaacs, Editor(s)

© SPIE. Terms of Use
Back to Top