The design, build, and validation of a breadboard version of the QCL-based surface contaminant detector are summarized. Results from developmental testing of contaminated substrates in standoff (5 m range) and proximal (~1 m range) configurations are presented. The test substrates were prepared by the government and Physical Sciences, Inc. and include solid and liquid contaminants at varying surface loadings. Future improvements including an expanded spectral range are discussed.
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Julia R. Dupuis, Jay Giblin, John Dixon, Joel Hensley, David Mansur, William J. Marinelli, "Advances in standoff surface contaminant detector platform: developmental test results," Proc. SPIE 10639, Micro- and Nanotechnology Sensors, Systems, and Applications X, 1063926 (14 May 2018);