29 May '14, 1pm

Graphene Plasmonic Circuits Take a Critical Step Foward

Graphene Plasmonic Circuits Take a Critical Step Foward

When one takes into account the rough and tumble world for electrons in electronic devices, one would think it might make more sense just to use photons instead. The problem has been that light takes up a lot of space. The components for such a photonic system can’t get any smaller than a wavelength of light, which would translate to devices many times larger than today’s. However, the field of plasmonics , which takes advantage of the surface plasmons that are generated when photons hit a metal structure, has looked to be a way forward for confining electromagnetic energy to subwavelength scales and create smaller photonic logic circuits. Recent research has shown that graphene and other two-dimensional materials produce plasmons too. These so-called graphene plasmons have an advantage over surface plasmons because their confinement of electromagnetic energy at subwavelen...

Full article: http://spectrum.ieee.org/nanoclast/semiconductors/optoele...

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