SCIENCE - Team develops compact, high-power terahertz source at room temperature

Terahertz (THz) radiation—radiation in the wavelength range of 30 to 300 microns—is gaining attention due to its applications in security screening, medical and industrial imaging, agricultural inspection, astronomical research, and other areas. Traditional methods of generating terahertz radiation, however, usually involve large and expensive instruments, some of which also require cryogenic cooling. A compact terahertz source—similar to the las ...

http://phys.org/news/2013-10-team-compact-high-power-terahertz-source.