Abstract
Polariton lasing is demonstrated on the zero-dimensional states of single GaAs/GaAlAs micropillar cavities. Under nonresonant excitation, the measured polariton ground-state occupancy is found as large as 104. Changing the spatial excitation conditions, competition between several polariton lasing modes is observed, ruling out Bose-Einstein condensation. When the polariton state occupancy increases, the emission blueshift is the signature of self-interaction within the half-light half-matter polariton lasing mode.
| Original language | English |
|---|---|
| Article number | 047401 |
| Journal | Physical Review Letters |
| Volume | 100 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 28 Jan 2008 |
| Externally published | Yes |