Detecting concealed explosives and chemical threats constitutes a critical challenge in global security, yet current ...

Security agencies continue to face a difficult tradeoff when screening for explosives and hazardous chemicals. Imaging systems such as X-ray and millimeter-wave scanners can quickly flag suspicious ...

Furthermore, terahertz devices currently used for whole body scans at airports must rotate 360 degrees around the human body, and thus they are large, bulky, and not portable. In addition, the ...

A few years ago, Matthew Carey lost a friend in a freak car accident, after the friend’s car struck some small debris on a highway and spun out of control. Ordinarily, the car’s sensors would have ...

Researchers developed a scalable, low-cost device that can generate high-power terahertz waves on a chip, without bulky silicon lenses. (Nanowerk News) The use of terahertz waves, which have shorter ...