Comparison of the differential absorption obtained within a few-level model and the microscopic density-matrix theory

M. Reichelt, C. Sieh, T. Meier, Stephan W Koch

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Abstract

A phenomenological multi-exciton level scheme is used to calculate the excitonic differential absorption as measured in pump and probe experiments. Numerical results are compared to those obtained by a fully microscopic density-matrix theory. For resonant excitation, optimized parameters yield qualitative agreement, but the phenomenological approach soon reaches its limit for non-resonant pumping.

Original languageEnglish (US)
Pages (from-to)249-252
Number of pages4
JournalPhysica Status Solidi (B) Basic Research
Volume221
Issue number1
Publication statusPublished - Sep 2000
Externally publishedYes

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ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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