Extraction of Many-Body Configurations from Nonlinear Absorption in Semiconductor Quantum Wells

R. P. Smith, J. K. Wahlstrand, A. C. Funk, R. P. Mirin, S. T. Cundiff, J. T. Steiner, M. Schafer, M. Kira, and S. W. Koch
Phys. Rev. Lett. 104, 247401 – Published 15 June 2010

Abstract

Detailed electronic many-body configurations are extracted from quantitatively measured time-resolved nonlinear absorption spectra of resonantly excited GaAs quantum wells. The microscopic theory assigns the observed spectral changes to a unique mixture of electron-hole plasma, exciton, and polarization effects. Strong transient gain is observed only under cocircular pump-probe conditions and is attributed to the transfer of pump-induced coherences to the probe.

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  • Received 15 December 2009

DOI:https://doi.org/10.1103/PhysRevLett.104.247401

©2010 American Physical Society

Authors & Affiliations

R. P. Smith1,2, J. K. Wahlstrand1, A. C. Funk1, R. P. Mirin3, S. T. Cundiff1,2,*, J. T. Steiner4, M. Schafer4, M. Kira4, and S. W. Koch4

  • 1JILA, National Institute of Standards and Technology and University of Colorado, Boulder, Colorado 80309-0440, USA
  • 2Department of Physics, University of Colorado, Boulder, Colorado 80309-0390, USA
  • 3National Institute of Standards and Technology, Boulder, Colorado, 80305 USA
  • 4Department of Physics, Philipps-University Marburg, Renthof 5, D-35032 Marburg, Germany

  • *cundiffs@jila.colorado.edu

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Vol. 104, Iss. 24 — 18 June 2010

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