Journal
OPTICS EXPRESS
Volume 20, Issue 20, Pages 22398-22405Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.20.022398
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Funding
- Natural Science Foundation of China [6177055]
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Graphene has attracted a high level of research interest because of its outstanding electronic transport properties and optical properties. Based on the Kubo formalism and the Maxwell equations, it's demonstrated that the optical conductivity of graphene can be controlled through the applied voltage. And we find that the graphene-oxide-silicon (GOS) based waveguide can be made into either the electro-absorptive or electron-refractive modulators. Using graphene as the active medium, we present a new electro-refractive Mach-Zender interferometer based on the GOS structure. This new GOS-based electron-refractive modulation mechanism can enable novel architectures for on-chip optical communications. (C) 2012 Optical Society of America
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