Abstract
A standoff trace chemical detection system to detect vehicle-borne threats was developed using a long-wave infrared (LWIR) microbolometer (MB) camera in combination with widely tunable external-cavity quantum cascade lasers. The system acquires hyperspectral images of the target surface’s reflectance in the LWIR portion of the “chemical fingerprint” band to allow for high-sensitivity detection and high-specificity identification of a wide range of surface chemicals. By using a MB camera, as opposed to more expensive alternatives, the system is targeted for applications that require small size and low cost. This talk describes the design and performance of the prototype.
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