The influence of a single quantum dot state on the characteristics of a microdisk laser
Other Condensed Matter
2007-05-23 v1
Abstract
We report a quantum dot microcavity laser with a cw sub-microwatt lasing threshold, where a significant reduction of the lasing threshold is observed when a single quantum dot (QD) state is aligned with a cavity mode. The quality factor exceeds 15 000 before the system lases. When no QD states are resonant, below threshold the cavity mode initially degrades with increasing pump power, after which saturation occurs and then the cavity mode recovers. We associate the initial cavity mode spoiling with QD state broadening that occurs with increasing pump power.
Keywords
Cite
@article{arxiv.cond-mat/0702560,
title = {The influence of a single quantum dot state on the characteristics of a microdisk laser},
author = {Z. G. Xie and S. Götzinger and W. Fang and H. Cao and G. S. Solomon},
journal= {arXiv preprint arXiv:cond-mat/0702560},
year = {2007}
}
Comments
Accepted for publication in Physical Review Letters