Tiny Tunable Terahertz Lasers Ready to Fly in Space

Researchers have achieved a tiny laser that operates in the terahertz frequencies for potential applications in imaging and scanning applications. Previous terahertz lasers required bulky laboratory equipment to stay cool enough to function. The new devices are the first to simultaneously reach three key performance goals—high power, tight beam, and broad frequency tuning—in a design that can work outside a laboratory and even in space.