Gain in a quantum wire laser of high uniformity
Mesoscale and Nanoscale Physics
2013-05-29 v1 Materials Science
Abstract
A multi-quantum wire laser operating in the 1-D ground state has been achieved in a very high uniformity structure that shows free exciton emission with unprecedented narrow width and low lasing threshold. Under optical pumping the spontaneous emission evolves from a sharp free exciton peak to a red-shifted broad band. The lasing photon energy occurs about 5 meV below the free exciton. The observed shift excludes free excitons in lasing and our results show that Coulomb interactions in the 1-D electron-hole system shift the spontaneous emission and play significant roles in laser gain.
Cite
@article{arxiv.cond-mat/0206125,
title = {Gain in a quantum wire laser of high uniformity},
author = {Hidefumi Akiyama and Loren N. Pfeiffer and Masahiro Yoshita and Aron Pinczuk and Peter B. Littlewood and Ken W. West and Manyalibo J. Matthews and James Wynn},
journal= {arXiv preprint arXiv:cond-mat/0206125},
year = {2013}
}
Comments
4 pages, 4 figures, prepared by RevTeX