Ultralow-power optical information processing and frequency generation in graphene-silicon photonic circuits
Sunday, July 15, 2012 - 12:31
in Physics & Chemistry
New research by Columbia Engineering demonstrates remarkable optical nonlinear behavior of graphene that may lead to broad applications in optical interconnects and low-power photonic integrated circuits. With the placement of a sheet of graphene just one-carbon-atom-thick, the researchers transformed the originally passive device into an active one that generated microwave photonic signals and performed parametric wavelength conversion at telecommunication wavelengths.