The spin dynamics in self-organized InAs/GaAs quantum dots have been studied by time-resolved photoluminescence performed under strictly resonant excitation conditions. It is demonstrated that the carrier spins in these nanostructures are totally frozen on the scale of the exciton lifetime.
Engineering exciton dynamics in self-organized quantum dots
β Scribed by R Heitz
- Publisher
- Elsevier Science
- Year
- 2003
- Tongue
- English
- Weight
- 578 KB
- Volume
- 16
- Category
- Article
- ISSN
- 1386-9477
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
Four-wave mixing (FWM) technique is used to study the phonon induced dephasing of the excitons in CdTe self-assembled quantum dots. The FWM signals show two different decay structures with fast and slow decay components, indicating a non-Lorentzian lineshape with a zero-phonon line and a broadband f
The exciton dynamics in Ga 1-x In x As/GaAs self-organized quantum dots grown on GaAs (111)B substrates are studied by the time-resolved photoluminescence (PL). We have found the intra-dot exciton relaxation by the reduction of the linewidth and peak energy and also by the energy-dependent PL rise t