We determined the femtosecond nonlinear phase and amplitude spectra in GaAs/AlGaAs quantum wells using a polarization-division Sagnac interferometer. The nonlinear dispersion around the excitonic resonance can be explained by ultrafast neutralization of the built-in field.
Femtosecond nonlinear phase dispersion of GaAs/AlGaAs quantum wells
Conference on Lasers and Electro-Optics, 2004. (CLEO). ; 2 ; 3 pp. vol.2
2004-01-01
113458 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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