Standoff Methods for the Detection of Threat Agents: A Review of Several Promising Laser-Based Techniques

<table>ArCLAS infrared system for determining spectroscopic signatures. There are numerous infrared light sources available including Pb-salt diode lasers, a Novawave DFG laser designed for operation near 3 microns, and four Daylight Solutions cw QCL lasers designed for operation at 10.6, 7.5, 5.5, and 4.5 microns, respectively.</table>

Journal of Spectroscopy

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Figure 1

Figure 1: Standoff Methods for the Detection of Threat Agents: A Review of Several Promising Laser-Based Techniques 