'Diffusion' of carriers in a semiconductor quantum well
- 1 March 1992
- journal article
- Published by IOP Publishing in Semiconductor Science and Technology
- Vol. 7 (3B) , B240-B242
- https://doi.org/10.1088/0268-1242/7/3b/057
Abstract
Picosecond pump-probe measurements of the exciton absorption resonance in a GaAs quantum well display a bleaching caused by collisional broadening. The authors have used this effect to measure how the effective diffusivity of photoexcited carriers depends on the excess kinetic energy imparted to them by the absorbed photons.Keywords
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