Abstract
Highly circularly polarized light is generated from highly uniform InAs/GaAs quantum dots. These quantum dots allowed us to observe the spin dynamics at each energy state selectively without disturbing the inhomogeneous broadening. Time-resolved spin-dependent photoluminescence measurements show that the spin polarization at the second excited state reaches a maximum of 45% at 10 K, and that the spin polarization is greater at higher-energy states. This large spin polarization is explained by the spin Pauli blocking effect.
| Original language | English |
|---|---|
| Pages (from-to) | 378-381 |
| Number of pages | 4 |
| Journal | Physica Status Solidi (C) Current Topics in Solid State Physics |
| Volume | 5 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2008 |
| Event | 15th International Conference on Nonequilibrium Carrier Dynamics in Semiconductors, HCIS15 - Tokyo, Japan Duration: 2007 Jul 23 → 2007 Jul 27 |
ASJC Scopus subject areas
- Condensed Matter Physics