Extraction-Controlled Quantum Cascade Lasers
arXiv:1007.5407 · doi:10.1063/1.3483764
Abstract
A simple two-well design for terahertz quantum cascade lasers is proposed which is based on scattering injection and the efficient extraction of electrons from the lower laser level by resonant tunneling. In contrast to existing designs this extraction also controls the positive differential conductivity. The device is analyzed by calculations based on nonequilibrium Green functions, which predict lasing operation well above 200 K at a frequency of 2.8 THz.
3 pages, 3 figures included in text
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Cited by in corpus (7)
- Thermoelectrically cooled THz quantum cascade laser operating up to 210 K
- A phonon scattering assisted injection and extraction based terahertz quantum cascade laser
- Two-well quantum cascade laser optimization by non-equilibrium Green's function modelling
- Photon-induced carrier transport in high efficiency midinfrared quantum cascade lasers
- Analysis of High Performing Terahertz Quantum Cascade Lasers
- Simulating terahertz quantum cascade lasers: Trends from samples from different labs
- Broadband Transistor-Injected Dual Doping Quantum Cascade Laser