Abstract
The strong coupling of photons and matter 1 in semiconductor nanocavities has been a test bed for cavity quantum electrodynamics 2,3 (QED). Vacuum Rabi oscillation 4-8 -the coherent exchange of a single quantum between a single quantum dot (SQD) and an optical cavityand highly efficient cavity-QED lasers 9-19 have both been reported. The coexistence of vacuum Rabi oscillation and laser oscillation seems to be contradictory, but it has recently been predicted theoretically that the strong-coupling effect could be sustained in laser oscillation 20 . Here, we demonstrate the onset of lasing in the strong-coupling regime in an SQD-cavity system. A high-quality semiconductor optical nanocavity and strong SQD-field coupling enabled the onset of lasing while maintaining the fragile coherent exchange of quanta.
Original language | English |
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Pages (from-to) | 279-283 |
Number of pages | 5 |
Journal | Nature Physics |
Volume | 6 |
Issue number | 4 |
DOIs | |
Publication status | Published - 2010 Apr |
Externally published | Yes |
ASJC Scopus subject areas
- Physics and Astronomy(all)