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Local electro-optic modulation of nanophotonic structures is important for many applications. Here, we show that one can achieve efficient tunability of the nanostructures by coupling them to graphene. The easy electrical control of graphene allows a large modulation of these graphene-clad nanophotonic devices. We describe electrostatic tuning of a metallic as well as a dielectric resonator coupled...
We have demonstrated electrically driven photonic crystal nanocavity lasers, LEDs and modulators with record low operation powers (e.g., lasing threshold of 180nA and sub-fJ/bit modulator operation), and with the modulation speeds exceeding 10GHz.
We have demonstrated an electrically driven photonic crystal nanocavity laser with record low threshold (180nA) and a single mode photonic crystal nanocavity LED directly modulated at 10GHz speed with 0.25 fJ/bit energy consumption.
The combination of a single quantum emitter (a quantum dot) and an optical nanocavity has been employed to demonstrate devices ranging from quantum sources and gates to optical switches and modulators controlled with sub-fJ energies.
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