Graphene plasmons used to create tunable terahertz laser

(Phys.org)—A team of researchers working at the University of Manchester in the U.K has developed a tunable teraherz laser using the unique properties of graphene plasmons. In their paper published in the journal Science, the group describes their approach, the four prototypes they produced, how well the lasers worked and the direction they plan to take to fashion the new technology into a usable device. Marco Polini with Istituto Italiano di Tecnologia, gives a Perspective piece on the wo