Differential measurements of Raman coherence and two-exciton correlations in quantum wells

Scot A. Hawkins, Eric J. Gansen, Martin J. Stevens, Arthur L. Smirl, I. Rumyantsev, R. Takayama, N. H. Kwong, R. Binder, D. G. Steel

Research output: Contribution to journalArticlepeer-review

19 Scopus citations


Quantum beats involving the light-hole and heavy-hole excitons in GaAs quantum wells are studied using both conventional and novel temporally gated differential detection techniques. The contributions of the exciton-exciton correlations are separated from those of the intervalence-band Raman coherence and the interband (population) coherence by monitoring the signal in the probe direction and by taking advantage of the polarization selection rules for the excitonic transitions. The results are shown to be in agreement with a theoretical analysis based on the dynamics-controlled truncation formalism.

Original languageEnglish (US)
Article number035313
Pages (from-to)353131-3531311
Number of pages3178181
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number3
StatePublished - Jul 2003

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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