Abstract
Time-resolved differential transmission measurements of self-assembled quantum dots clearly indicate a phonon bottleneck between the and electronic levels. The key to this observation is the generation of electrons in dots where there are no holes so that electron-hole scattering does not mask the bottleneck. We use a simple carrier capture model consisting of two capture configurations to explain the bottleneck signal and offer arguments to rule out other possible sources of the signal.
- Received 27 June 2000
DOI:https://doi.org/10.1103/PhysRevLett.86.4930
©2001 American Physical Society