Superfast fluorescence sets new speed record

Duke University

Duke University researchers are now one step closer to such a light source. In a new study, a team from the Pratt School of Engineering pushed semiconductor quantum dots to emit light at more than 90 billion gigahertz. This so-called plasmonic device could one day be used in optical computing chips or for optical communication between traditional electronic microchips. This field interacts with quantum dots – spheres of semiconducting material just six nanometers wide – that are sandwiched in between the nanocube and the gold. The eventual goal is to integrate our technology into a device that can be excited either optically or electrically, said Thang Hoang, also a postdoctoral researcher in Mikkelsen’s laboratory.

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