Electronics Letters · 1996 · 163 citations · 5 references
Natural SciencesElectrical EngineeringMaterials ScienceOptical MaterialsOpticsOptoelectronicsInfrared Optical MaterialsLaser DiodesLaser OpticsLaser PhysicsOptical SourcesSemiconductor LasersInterband Cascade LasersQuantum Cascade Lasers
The authors propose two novel sources emitting in the mid-IR: type-II and type-I interband cascade lasers, and perform detailed gain calculations. High radiative efficiencies are expected, since the phonon processes which dominate relaxation in the intersub-band quantum cascade laser are effectively eliminated.
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Type-II quantum-well lasers for the mid-wavelength infrared
J. R. Meyer, C. A. Hoffman, F. J. Bartoli et al. · Applied Physics Letters · 1995 · 428 citations
Vertical transition quantum cascade laser with Bragg confined excited state
Jérôme Faist, Federico Capasso, Carlo Sirtori et al. · Applied Physics Letters · 1995 · 195 citations