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2D semiconductor nonlinear plasmonic modulators

Author

Listed:
  • Matthew Klein

    (University of Arizona
    University of Arizona)

  • Bekele H. Badada

    (University of Arizona)

  • Rolf Binder

    (University of Arizona
    University of Arizona)

  • Adam Alfrey

    (University of Arizona)

  • Max McKie

    (University of Arizona)

  • Michael R. Koehler

    (University of Tennessee)

  • David G. Mandrus

    (University of Tennessee
    Oak Ridge National Laboratory
    University of Tennessee)

  • Takashi Taniguchi

    (National Institute for Materials Science)

  • Kenji Watanabe

    (National Institute for Materials Science)

  • Brian J. LeRoy

    (University of Arizona)

  • John R. Schaibley

    (University of Arizona)

Abstract

A plasmonic modulator is a device that controls the amplitude or phase of propagating plasmons. In a pure plasmonic modulator, the presence or absence of a plasmonic pump wave controls the amplitude of a plasmonic probe wave through a channel. This control has to be mediated by an interaction between disparate plasmonic waves, typically requiring the integration of a nonlinear material. In this work, we demonstrate a 2D semiconductor nonlinear plasmonic modulator based on a WSe2 monolayer integrated on top of a lithographically defined metallic waveguide. We utilize the strong interaction between the surface plasmon polaritons (SPPs) and excitons in the WSe2 to give a 73 % change in transmission through the device. We demonstrate control of the propagating SPPs using both optical and SPP pumps, realizing a 2D semiconductor nonlinear plasmonic modulator, with an ultrafast response time of 290 fs.

Suggested Citation

  • Matthew Klein & Bekele H. Badada & Rolf Binder & Adam Alfrey & Max McKie & Michael R. Koehler & David G. Mandrus & Takashi Taniguchi & Kenji Watanabe & Brian J. LeRoy & John R. Schaibley, 2019. "2D semiconductor nonlinear plasmonic modulators," Nature Communications, Nature, vol. 10(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-11186-w
    DOI: 10.1038/s41467-019-11186-w
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    Cited by:

    1. Matthew Klein & Rolf Binder & Michael R. Koehler & David G. Mandrus & Takashi Taniguchi & Kenji Watanabe & John R. Schaibley, 2022. "Slow light in a 2D semiconductor plasmonic structure," Nature Communications, Nature, vol. 13(1), pages 1-7, December.

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