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Plasmonic Slot Waveguides with Core Nonlinearity

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Abstract

We analytically study the interplay between group velocity dispersion and material dispersion due to femtosecond ultrafast pulse inside plasmonic slot waveguides with nonlinear dielectric core. The analytic investigation of the role of the core nonlinearity on pulse propagation has been investigated. Interestingly, our model shows that the focusing and defocusing effects of the material can be revered if the material is confined inside the core of a plasmonic slot. We confirm our analytical results with nonlinear finite difference time domain (FDTD) simulations.

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Author notes

  1. Sherif A. Tawfik

    Present address: School of Physics, The University of Sydney, Sydney, New South Wales, 2006, Australia

Authors and Affiliations

  1. The American University in Cairo, New Cairo, Cairo Governorate, Egypt

    Mohamed A. Swillam & Sherif A. Tawfik

  2. University of Toronto, Toronto, ON, Canada

    Mohamed A. Swillam

Authors
  1. Mohamed A. Swillam
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  2. Sherif A. Tawfik
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Correspondence to Sherif A. Tawfik.

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Swillam, M.A., Tawfik, S.A. Plasmonic Slot Waveguides with Core Nonlinearity. Plasmonics 9, 409–413 (2014). https://doi.org/10.1007/s11468-013-9637-4

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  • DOI: https://doi.org/10.1007/s11468-013-9637-4

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