Magnetic-field enhancement of the exciton-polariton splitting in a semiconductor quantum-well microcavity: The strong coupling threshold

J. D. Berger, O. Lyngnes, H. M. Gibbs, Galina Khitrova, T. R. Nelson, E. K. Lindmark, A. V. Kavokin, M. A. Kaliteevski, V. V. Zapasskii

Research output: Contribution to journalArticle

55 Citations (Scopus)

Abstract

We investigate the influence of strong magnetic confinement on an exciton coupled to the resonant mode of a semiconductor microcavity. Cavity mode coupling to a variety of discrete exciton resonances is described in direct relation to the quantum-well magnetoabsorption spectra. We show that the magnetic-field-enhanced vacuum Rabi splitting and time-resolved oscillation frequency obey the predicted square-root dependence on the exciton oscillator strength computed directly from the integrated absorption spectra. Anticrossing curves measured in zero field and in 11.25 T evidence an interesting three-oscillator coupling observable only at high fields due to enhanced higher-order light-hole-exciton transitions. The data are in excellent agreement with a theoretical model which deduces magnetic-field-dependent oscillator strengths and corresponding reflectance spectra from a variational calculation combined with a transfer matrix method.

Original languageEnglish (US)
Pages (from-to)1975-1981
Number of pages7
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume54
Issue number3
StatePublished - Jul 15 1996

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Microcavities
Excitons
polaritons
Semiconductor quantum wells
excitons
quantum wells
Magnetic fields
thresholds
augmentation
magnetic fields
oscillator strengths
Transfer matrix method
Electron transitions
matrix methods
coupled modes
Absorption spectra
oscillators
Vacuum
Semiconductor materials
absorption spectra

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Magnetic-field enhancement of the exciton-polariton splitting in a semiconductor quantum-well microcavity : The strong coupling threshold. / Berger, J. D.; Lyngnes, O.; Gibbs, H. M.; Khitrova, Galina; Nelson, T. R.; Lindmark, E. K.; Kavokin, A. V.; Kaliteevski, M. A.; Zapasskii, V. V.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 54, No. 3, 15.07.1996, p. 1975-1981.

Research output: Contribution to journalArticle

Berger, JD, Lyngnes, O, Gibbs, HM, Khitrova, G, Nelson, TR, Lindmark, EK, Kavokin, AV, Kaliteevski, MA & Zapasskii, VV 1996, 'Magnetic-field enhancement of the exciton-polariton splitting in a semiconductor quantum-well microcavity: The strong coupling threshold', Physical Review B - Condensed Matter and Materials Physics, vol. 54, no. 3, pp. 1975-1981.
Berger, J. D. ; Lyngnes, O. ; Gibbs, H. M. ; Khitrova, Galina ; Nelson, T. R. ; Lindmark, E. K. ; Kavokin, A. V. ; Kaliteevski, M. A. ; Zapasskii, V. V. / Magnetic-field enhancement of the exciton-polariton splitting in a semiconductor quantum-well microcavity : The strong coupling threshold. In: Physical Review B - Condensed Matter and Materials Physics. 1996 ; Vol. 54, No. 3. pp. 1975-1981.
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