Abstract
We report an experimental demonstration of electromagnetically induced transparency in the transient optical response in a cascade-type three-level system of GaAs/AlGaAs multiple quantum wells, and analyze the cascade-type three-level schemes with density matrix and Maxwell equations to then obtain the phase shift, group velocity, and group-velocity dispersion. The calculated group velocity is ∼6.87×104 m/s and the corresponding pulse delay is ∼7 ps. Finally, we provide a convenient basis for investigating many-body effects in semiconductors.
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Acknowledgements
This work was supported by the National Natural Science Foundation of China (Grant No. 60877040) and the National Basic Research Program of China (Grant No. 2010CB923204).
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Yan, W., Wang, T., Li, X.M. et al. Electromagnetically induced transparency and theoretical slow light in semiconductor multiple quantum wells. Appl. Phys. B 108, 515–519 (2012). https://doi.org/10.1007/s00340-012-5019-4
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DOI: https://doi.org/10.1007/s00340-012-5019-4