Characterizing biexciton coherences with quantum spectroscopy

M. Mootz, M. Kira, Stephan W Koch, A. E. Almand-Hunter, S. T. Cundiff

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

The biexciton resonance in the absorption spectra of semiconductor quantum wells is analyzed with quantum-optical spectroscopy by projecting experimental pump-probe measurements into quantum-optical absorption spectra. More specifically, the measurements are converted into phase-space distributions using the cluster-expansion transformation. The quantum-optical responses can then be projected with full convergence, despite the unavoidable experimental noise. The calculations show that classical and quantum excitations produce significantly different results for the biexciton resonance. In particular, quantum-optical spectroscopy monitors the excitation-induced broadening of the biexciton resonance as a function of pump intensity much more sensitively than classical spectroscopy does.

Original languageEnglish (US)
Article number155301
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume89
Issue number15
DOIs
StatePublished - Apr 2 2014
Externally publishedYes

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Spectroscopy
Absorption spectra
Pumps
pumps
spectroscopy
absorption spectra
Light absorption
Semiconductor quantum wells
excitation
optical spectrum
optical absorption
quantum wells
expansion
probes
Optical spectroscopy

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Characterizing biexciton coherences with quantum spectroscopy. / Mootz, M.; Kira, M.; Koch, Stephan W; Almand-Hunter, A. E.; Cundiff, S. T.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 89, No. 15, 155301, 02.04.2014.

Research output: Contribution to journalArticle

Mootz, M. ; Kira, M. ; Koch, Stephan W ; Almand-Hunter, A. E. ; Cundiff, S. T. / Characterizing biexciton coherences with quantum spectroscopy. In: Physical Review B - Condensed Matter and Materials Physics. 2014 ; Vol. 89, No. 15.
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