Importance of the microscopic effects on the linewidth enhancement factor of quantum cascade lasers

• Main Authors: Liu, Tao, Lee, Kenneth E., Wang, Qi Jie
• Other Authors: School of Electrical and Electronic Engineering
• Format: Article
• Language: English
• Published: 2014
• Subjects: DRNTU::Science::Physics::Optics and light
• Online Access: https://hdl.handle.net/10356/96214; http://hdl.handle.net/10220/18391
• Institution: Nanyang Technological University

Microscopic density matrix analysis on the linewidth enhancement factor (LEF) of both mid-infrared (mid-IR) and Terahertz (THz) quantum cascade lasers (QCLs) is reported, taking into account of the many body Coulomb interactions, coherence of resonant-tunneling transport and non-parabolicity. A non-...