Publication # 352

352.   S. Claussen, L. Tang, J. Roth, O. Fidaner, S. Latif, and D. A. B. Miller, "Femtosecond carrier dynamics in Ge/SiGe quantum wells," 4th International Conference on Group IV Photonics, Tokyo, Japan, September 2007, Paper ThA4

We resolve photoinduced changes in carrier populations of Ge/SiGe quantum wells using femtosecond pump-probe spectroscopy. Absorption transients < 400fs indicate rapid Г→L intervalley scattering that may explain exciton linewidth and suggest saturable absorber applications.

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