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Femtosecond studies in hot carrier relaxation in GaAs and AlGaAs

Book ·
OSTI ID:7004215
Femtosecond carrier dynamics in GaAs and AlGaAs thin films were studied by femtosecond pump-probe absorption saturation spectroscopy. Identical pulse measurements monitor the rapid scattering of the carriers out of their initial, optically excited states. Multi-wavelength continuum probe investigations confirm the presence of the initial nonthermal carrier distribution as well as the appearance of state-filling throughout the band on a timescale of tens of femtoseconds. This presentation is represented by viewgraphs.
OSTI ID:
7004215
Country of Publication:
United States
Language:
English