These last 10 years, smaller, less expensive, and higher performance sensors are required
for gas sensing applications. To date no true detection principle has been recognized as the …

Laser-Based Optical Detection of Explosives offers a comprehensive review of past, present,
and emerging laser-based methods for the detection of a variety of explosives. This book …

We report detection and identification of trace quantities of explosives at standoff distances
up to 150 m with high sensitivity (signal-to-noise ratio of~ 70) and high selectivity. The …

A defect diamond-like mid-IR NLO material, AgIn5Se8, is synthesized and its NLO
performance has been systematically studied for the first time. This compound exhibits a …

While recent high-profile assassination attempts have once again brought nerve agents
(NAs) into the spotlight, the current portfolio of NA sensors lack a sufficient combination of …

Tetrahedral groups can possess a wide bandgap and large second harmonic generation
(SHG) response in nonlinear optical (NLO) materials; however, they usually exhibit a small …

Detecting trace explosives and explosive-related compounds has recently become a topic of
utmost importance for increasing public security around the world. A wide variety of …

We present results demonstrating real-time sensing of four different fluorocarbons at low part-
per billion (ppb) concentrations using an external cavity quantum cascade laser (ECQCL) …

Abstract Mid-infrared (mid-IR) nonlinear optical (NLO) materials are extensively researched
as a vital optoelectronic material family with widespread applications ranging from civil to …

We report high-throughput, nondispersive optical multiplexing of laser beams using a
scanning galvanometer. We have utilized this technique for multispecies trace-gas detection …