Nanowerk  November 19, 2018
An international team of researchers (Germany, the Netherlands, Spain) has generated terahertz harmonics up to the seventh order in single-layer graphene at room temperature and under ambient conditions, driven by terahertz fields of only tens of kilovolts per centimetre, and with field conversion efficiencies in excess of 10−3, 10−4 and 10−5 for the third, fifth and seventh terahertz harmonics, respectively. The results provide a direct pathway to highly efficient terahertz frequency synthesis using the present generation of graphene electronics, which operate at much lower fundamental frequencies of only a few hundreds of gigahertz…read more. TECHNICAL ARTICLE
Graphene boosts GHz signals into terahertz territory
Posted in Terahertz technology and tagged Optical harmonic generation.