Coherent phonons in condensed media (2000)
Dekorsy, Thomas, Cho, Gyu Cheon, Kurz, Heinrich
The impulsive excitation and phase-sensitive detection of coherent phonons and phonon-polaritons provide a detailed insight into the dynamical properties of matter. The experiments are based on...
Zugl.: Aachen, Techn. Hochsch., Diss., 1997.
Time-resolved observation of coherent phonons by the Franz-Keldysh effect (1996)
Cho, Gyu Cheon, Bakker, Huib J., Dekorsy, Thomas, Kurz, Heinrich
We report on the time-resolved observation of coherent optical phonons in GaAs by the Franz-Keldysh effect. This effect leads to a modulation of the optical interband transitions with a nonlinear...
Subpicosecond coherent carrier-phonon dynamics in semiconductor heterostructures (1996)
Dekorsy, Thomas, Kim, A. M. T., Cho, Gyu Cheon, Kurz, Heinrich, Kuznetsov, Alex V., Förster, Arno
Coherent longitudinal-optical phonons are generated in semiconductor heterostructures. The coupling of the coherent, longitudinal-optic (LO) phonons to collective carrier excitations oscillating...
Quantum coherence of continuum states in the valence band of GaAs quantum wells (1996)
Dekorsy, Thomas, Kim, A. M. T., Cho, Gyu Cheon, Hunsche, Stefan, Bakker, Huib J., Kurz, Heinrich, ...
Quantum beats of heavy and light holes in GaAs quantum wells are investigated in femtosecond time-resolved four-wave mixing and transmission experiments as a function of optical excitation energy....