Correlation between heavy-hole and light-hole Mahan Excitons in a two-dimensional electron gas

ORAL

Abstract

We present the coherent two-dimensional Fourier transform (2DFT) spectra of Mahan Excitons associated with the heavy-hole and light-hole resonances observed in a modulation doped GaAs/AlGaAs single quantum well. These resonances are observed to be strongly coupled through many-body interactions. The 2DFT spectra were measured using co-linear, cross-linear, and co-circular polarizations and reveal striking differences. This work was performed, in part, at the Center for Integrated Nanotechnologies, a U.S. Department of Energy, Office of Basic Energy Sciences user facility. Sandia National Laboratories is a multi-program laboratory managed and operated by Sandia Corporation, a wholly owned subsidiary of Lockheed Martin Corporation, for the U.S. Department of Energy's National Nuclear Security Administration under Contract No. DE-AC04-94AL85000.

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Authors

  • J. Paul

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

  • P. Dey

    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

  • T. Tokumoto

    Dept. of Physics, University of Alabama at Birmingham, Birmingham, Alabama 35294, USA

  • J.L. Reno

    CINT, Sandia National Laboratories, Albuquerque, New Mexico 87185, USA

  • D.J. Hilton

    Univ of Alabama - Birmingham, Dept. of Physics, University of Alabama at Birmingham, Birmingham, Alabama 35294, USA

  • D. Karaiskaj

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