Graphene plasmonic waveguides for mid-infrared supercontinuum generation on a chip

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Abstract

Using perturbation expansion of Maxwell equations with the nonlinear boundary condition, a generic propagation equation is derived to describe nonlinear effects, including spectral broadening of pulses, in graphene surface plasmon (GSP) waveguides. A considerable spectral broadening of an initial 100 fs pulse with 0.5 mW peak power in a 25 nm wide and 150 nm long waveguide is demonstrated. The generated supercontinuum covers the spectral range from 6 μm to 13 μm .
Original languageEnglish
Pages (from-to)825-837
JournalPhotonics
Volume2
Issue number3
DOIs
Publication statusPublished - 23 Jul 2015

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