Exciton-phonon and exciton-exciton interactions in GaAs by time-resolved optical reflectivity
We present the study of the ultrafast carrier dynamics in bulk GaAs at 6 K, by time-resolved optical reflectivity in a wide range of excitation densities. We observe an exciton-phonon interaction at low excitation densities, in terms of a mono-exponential relaxation. Further increase of excitation d...
| Main Authors: | , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2019-03-01
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| Series: | Results in Physics |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2211379718332145 |