Emission dynamics of a magnetoexciton quantum-dot microcavity laser
Abstract
We investigate the stimulated emission properties of an In0.18Ga0.82As/GaAs quantum-well microcavity laser under strong magnetic confinement. The dynamics depend sensitively on excitation intensity and cavity mode energy, but show no magnetic-field dependence over a wide range of excitation conditions. The results evidence a fast relaxation which is uninhibited by the quasi-three-dimensional quantum confinement, and may indicate an advantage in designing quantum dots with equidistant energy levels, where Coulomb scattering via an Auger process is expected to be highly efficient.
- Publication:
-
Physical Review B
- Pub Date:
- February 1997
- DOI:
- 10.1103/PhysRevB.55.R4910
- Bibcode:
- 1997PhRvB..55.4910B