Graphene boosts GHz signals into terahertz territory

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

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