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 language | English (US) |
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Pages (from-to) | 1975-1981 |
Number of pages | 7 |
Journal | Physical Review B - Condensed Matter and Materials Physics |
Volume | 54 |
Issue number | 3 |
DOIs | |
State | Published - 1996 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics