Nanowire terahertz quantum cascade lasers
Mesoscale and Nanoscale Physics
2014-10-08 v3
Abstract
Quantum cascade lasers made of nanowire axial heterostructures are proposed. The dissipative quantum dynamics of their carriers is theoretically investigated using non-equilibrium Green functions. Their transport and gain properties are calculated for varying nanowire thickness, from the classical-wire regime to the quantum-wire regime. Our calculation shows that the lateral quantum confinement provided by the nanowires allows an increase of the maximum operation temperature and a strong reduction of the current density threshold compared to conventional terahertz quantum cascade lasers.
Keywords
Cite
@article{arxiv.1301.1258,
title = {Nanowire terahertz quantum cascade lasers},
author = {Thomas Grange},
journal= {arXiv preprint arXiv:1301.1258},
year = {2014}
}
Comments
5 pages, 4 figures