News From the Field
Graphene Is a Tunable Plasmonic Medium
June 20, 2012
With a beam of infrared light, scientists have sent ripples of electrons along the surface of graphene and demonstrated that they can control the length and height of these oscillations, called plasmons, using a simple electrical circuit. This is the first time anyone has observed plasmons on graphene, sheets of carbon just 1 atom thick, and an important step toward using plasmons to process and transmit information in spaces too tight to use light.
University of California, San Diego
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