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Conferences > QELS > 1992 > QTuB > QTuB3
  • Quantum Electronics and Laser Science Conference
  • OSA Technical Digest (Optica Publishing Group, 1992),
  • paper QTuB3

Spin-flip-induced spectral hole burning of magneto-excitons in GaAs/AIGaAs quantum wells

Hailin Wang, Min Jiang, R. Merlin, and Duncan G Steel

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Abstract

The density of states in a quantum well structure is fully quantized under a magnetic field parallel to the growth axis. As a result, relaxation of carriers or excitons between spinsplit levels can only take place via inelastic processes, leading to a substantial increase of the spin relaxation time.1 Using frequency - domain four-wave mixing (FWM) and selective optical excitation, we are able to probe for the first time the spin-flip transitions of localized magnetoexcitons and measure directly their Zeeman splitting.

© 1992 Optical Society of America

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