Fast, Room-Temperature THz Detector Made of Graphene
COLLEGE PARK, Md., Sept. 8, 2014 — COLLEGE PARK, Md., Sept. 8, 2014 — A prototype graphene photodetector is capable of detecting terahertz frequencies quickly and at room temperature, possibly enabling a new generation of see-through imaging. A hot-electron photothermoelectric effect was used to create the device, which is “as sensitive as any existing room-temperature detector in the terahertz range and more than a million times faster,” according to Michael Fuhrer, a professor of physics at the