Smart dust infrared sensors for standoff explosives detection

Alexey E. Kovalev; Matthew G. Bray; Emil Avier Hernandez-Pagan; Theresa S. Mayer; Douglas H. Werner

doi:10.1117/12.818798

8 May 2009 Smart dust infrared sensors for standoff explosives detection

Alexey E. Kovalev, Matthew G. Bray, Emil Avier Hernandez-Pagan, Theresa S. Mayer, Douglas H. Werner

Proceedings Volume 7304, Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing X; 73041A (2009) https://doi.org/10.1117/12.818798
Event: SPIE Defense, Security, and Sensing, 2009, Orlando, Florida, United States

Abstract

We demonstrate a prototype sensor based on a new eye-safe detection strategy with the potential to report the presence trace explosives from standoff distances of up to 100 m. The method detects the reflected infrared radiation from groups of micron-sized chemically-sensitized metallodielectric nanostructures. Specifically, the sensors change from reflecting to absorbing nearly 100% of the incident probe beam radiation over a narrow band of mid-IR wavelengths when explosive vapor is present. This strategy is not limited to the detection to explosives, but can also be used to detect other threats by modifying the chemically-sensitive layers of the nanostructure.

Citation Download Citation

Alexey E. Kovalev, Matthew G. Bray, Emil Avier Hernandez-Pagan, Theresa S. Mayer, and Douglas H. Werner "Smart dust infrared sensors for standoff explosives detection", Proc. SPIE 7304, Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing X, 73041A (8 May 2009); https://doi.org/10.1117/12.818798

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