Optical Two Dimensional Fourier Transform Spectroscopy of Layered Metal Dichalcogenides

ORAL

Abstract

Nonlinear two-dimensional Fourier transform (2DFT) measurements were used to study the mechanism of excitonic dephasing and probe the electronic structure of the excitonic ground state in layered metal dichalcogenides. Temperature-dependent 2DFT measurements were performed to probe exciton-phonon interactions. Excitation density dependent 2DFT measurements reveal exciton-exciton and exciton-carrier scattering, and the lower limit for the homogeneous linewidth of excitons on positively and negatively doped samples.

*U.S. Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering under Award DE-SC0012635

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Authors

  • P. Dey

    • Dept. of Physics, University of South Florida, Tampa, Florida 33620, USA
    • Dept of Physics, University of South Florida

  • J. Paul

    • Dept. of Physics, University of South Florida, Tampa, Florida 33620, USA
    • Dept of Physics, University of South Florida

  • C.E. Stevens

    • Dept. of Physics, University of South Florida, Tampa, Florida 33620, USA
    • Dept of Physics, University of South Florida

  • Z.D. Kovalyuk

    • The National Academy of Sciences of Ukraine

  • Z.R. Kudrynskyi

    • The National Academy of Sciences of Ukraine

  • A.H. Romero

    • Dept of Physics, West Virginia University

  • A. Cantarero

    • Material Science, University of Valencia

  • D.J. Hilton

    • Dept of Physics, University of Alabama at Birmingham

  • J. Shan

    • Pennylvania State University
    • Penn State University
    • Dept of Physics, Pennsylvania State University

  • D. Karaiskaj

    • Dept. of Physics, University of South Florida, Tampa, Florida 33620, USA
    • University of South Florida
    • Dept of Physics, University of South Florida