Optical coherent control in semiconductors: Fringe contrast and inhomogeneous broadening

John Erland Østergaard, Lyssenko Vadim, Jørn Märcher Hvam

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Abstract

Optical coherent control experiments in semiconductors reveal how inhomogeneous broadening must be taken into account in contrast to previous coherent control experiments in atomic and molecular systems. With spectral resolution elf the coherent control signal, the optical phases involved in the interplay between the homogeneous and inhomogeneous broadenings are measured. Based on these experiments, a coherent control model describing the optical fringe contrast using different detection schemes, such as photoluminescence or four-wave mixing, is established. Significant spectral modulation is observed in the four-wave mixing spectra as a function of phase-delay representing coherent control in the spectral domain. The spectral phase change of this modulation provides a spectroscopic tool to analyze contributions of inhomogeneous broadening to electronic resonances in semiconductor structures.
Original languageEnglish
JournalPhysical Review B Condensed Matter
Volume63
Issue number15
Pages (from-to)155317
ISSN0163-1829
DOIs
Publication statusPublished - 2001

Bibliographical note

Copyright (2001) American Physical Society

Keywords

  • TIME
  • STATE
  • GAAS
  • QUANTUM-WELL EMISSION
  • DOT
  • DYNAMICS
  • EXCITONS

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