Graphene quantum dots pave a new way to light detection

Posted in News Story

Dr. Abdel El Fatimy and Prof. Paola Barbara in the Department of Physics, in collaboration with Dr. Kurt Gaskill’s group at the Naval Research Laboratory, have developed a novel type of graphene nanodevice to detect millimeter and submillimeter wavelength (terahertz) radiation with extraordinary sensitivity, at least 100,000 times higher than other graphene-based or commercial terahertz sensors. Terahertz radiation is useful for many applications in a variety of fields, from medical and security imaging to chemical fingerprinting, but is difficult to detect and powerful sources are scarce. The Georgetown-NRL findings have been published in the latest issue of the journal Nature Nanotechnology.  Read the full story.