Exploring layered GaSe crystals with 2DFT spectroscopy

ORAL

Abstract

The dephasing and lifetime of excitons and biexcitonic effects in GaSe layered crystals have been carefully measured using three pulse four-wave mixing and two-dimensional Fourier transform (2DFT) spectroscopy. Strong biexciton signatures are observed in the 2DFT spectra. Excitation density and temperature dependence 2DFT spectra provide new insights into the many-body interactions in this material.

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Authors

  • P. Dey

    • University of South Florida

  • J. Paul

    • University of South Florida

  • D. Karaiskaj

    • University of South Florida

  • Z. Kovalyuk

    • National Academy of Sciences of Ukraine

  • Z. Kudrynskyi

    • National Academy of Sciences of Ukraine