A breakthrough in developing multi-watt terahertz lasers
Terahertz lasers could soon have their moment. Emitting radiation that sits somewhere between microwaves and infrared light along the electromagnetic spectrum, terahertz lasers have been the focus of intense study because of their ability to penetrate common packaging materials (such as plastics, fabrics, and cardboard) and to be used for identification and detection of various chemicals and biomolecular species—and even for imaging of some types of biological tissue without causing damage.
