Far-infrared (λ=88 μm) electroluminescence in a quantum cascade structure
- 21 December 1998
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 73 (25) , 3724-3726
- https://doi.org/10.1063/1.122895
Abstract
Intersubband electroluminescence has been investigated in a quantum cascade structure based on vertical transition designed for far-infrared (λ=88 μm) emission. A narrow luminescence peak with a full width at half maximum of 0.7 meV is measured at low excitation currents (30 A/cm2) and low temperature (T=5 K). The electroluminescence efficiency exhibits a strong temperature and current dependence, consistent with an interplay between electron–electron and optical phonon scattering.Keywords
This publication has 14 references indexed in Scilit:
- Efficient Intersubband Scattering via Carrier-Carrier Interaction in Quantum WellsPhysical Review Letters, 1998
- Electrically pumped tunable terahertz emitter based on intersubband transitionApplied Physics Letters, 1997
- Far-infrared emission from parabolically graded quantum wellsApplied Physics Letters, 1996
- High power mid-infrared (λ∼5 μm) quantum cascade lasers operating above room temperatureApplied Physics Letters, 1996
- Far-infrared pump-probe measurements of the intersubband lifetime in an AlGaAs/GaAs coupled-quantum wellApplied Physics Letters, 1996
- Quantum Cascade LaserScience, 1994
- Mid-infrared field-tunable intersubband electroluminescence at room temperature by photon-assisted tunneling in coupled-quantum wellsApplied Physics Letters, 1994
- Intersubband emission from semiconductor superlattices excited by sequential resonant tunnelingPhysical Review Letters, 1989
- Observation of grating-induced intersubband emission from GaAs/AlGaAs superlatticesApplied Physics Letters, 1988
- Voltage-Tunable Far-Infrared Emission from Si Inversion LayersPhysical Review Letters, 1976