Analysis of transport properties of tetrahertz quantum cascade lasers
- 14 July 2003
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 83 (2) , 207-209
- https://doi.org/10.1063/1.1590749
Abstract
We present a self-consistent modeling of a 3.4-THz intersubband laser device. An ensemble Monte Carlo simulation, including both carrier–carrier and carrier-phonon scattering, is used to predict current density, population inversion, gain, and electron temperature. However, these two scattering mechanisms alone appear to be insufficient to explain the observed current density. In addition, the insufficient scattering yields a gain that is slightly higher than inferred from experiments. This suggests the presence of a non-negligible scattering mechanism which is unaccounted for in the present calculations.Keywords
This publication has 14 references indexed in Scilit:
- 3.4-THz quantum cascade laser based on longitudinal-optical-phonon scattering for depopulationApplied Physics Letters, 2003
- Low-threshold terahertz quantum-cascade lasersApplied Physics Letters, 2002
- Terahertz semiconductor-heterostructure laserNature, 2002
- Design and simulation of terahertz quantum cascade lasersApplied Physics Letters, 2001
- Optimized energy separation for phonon scattering in three-level terahertz intersubband lasersJournal of Applied Physics, 2001
- Microscopic theory of hot-carrier relaxation in semiconductor-based quantum-cascade lasersApplied Physics Letters, 2000
- Carrier-carrier scattering in photoexcited intrinsic GaAs quantum wells and its effect on femtosecond plasma thermalizationPhysical Review B, 1995
- Effect of electron-electron scattering on nonequilibrium transport in quantum-well systemsPhysical Review B, 1988
- Semiconducting and other major properties of gallium arsenideJournal of Applied Physics, 1982
- Many-body corrections to the polarizability of the two-dimensional electron gasSurface Science, 1978