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Conferences > QELS > 1995 > QThF > QThF5
  • Quantum Electronics and Laser Science Conference
  • OSA Technical Digest (Optica Publishing Group, 1995),
  • paper QThF5

Dephasing of localized and delocalized excitons in disordered Cd1–xMnxTe/Cd0.60Mg0.40Te quantum wells

R. Hellmann, S. T. Cundiff, M. Koch, J. Feldmann, E. O. Göbel, G. Mackh, A. Waag, and G. Landwehr

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Abstract

Transient four-wave mixing (TFWM) has recently been used to study the dynamics of coherently excited states in semiconductor quantum wells.1 It allows the direct measurement of the excitonic dephasing time T2, which is determined by the interaction of the excitons with their environment. Excitons typically dephase by scattering with other quasi particles, such as ponons and other carriers. Additionally, disorder can be significant in determining the dephasing rate.

© 1995 Optical Society of America

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