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Ultrafast optical pump - THz probe spectroscopy is used to measure the conductivity recovery dynamics in epitaxial graphene. The observed dynamics are insensitive to probe frequency, with recovery rates consistent with mid-IR measurements of carrier cooling.
Nondegenerate ultrafast mid-infrared pump-probe spectroscopy is used to study multilayer epitaxial graphene. By tuning the probe wavelength, we can determine the doping profile of the layers.
In the long-distance telecom, local-area, and rack-to-rack link classes, optical interconnects have gradually replaced electrical interconnects. We believe that this trend will be continued in the short-distance card-backplane-card datacom link class. Convincing arguments for the predicted transition from electrical to optical interconnects are bandwidth-length advantages, density benefits, crosstalk...
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