Nanowire terahertz quantum cascade lasers
arXiv:1301.1258 · doi:10.1063/1.4897543
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.
5 pages, 4 figures
References in corpus (5)
- Self-Consistent Theory of the Gain Linewidth for Quantum Cascade Lasers
- Monte-Carlo-based spectral gain analysis for THz quantum cascade lasers
- Polaron relaxation in self-assembled quantum dots: Breakdown of the semi-classical model
- Electron transport in quantum wire superlattices
- Quantum transport in semiconductor quantum dot superlattices: electron-phonon resonances and polaron effects