%0 Journal Article
%T Nanowire terahertz quantum cascade lasers
%A Thomas Grange
%J Physics
%D 2013
%I arXiv
%R 10.1063/1.4897543
%X 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.
%U http://arxiv.org/abs/1301.1258v3