Optical properties of ultrathin InAs quantum-well-heterostructures
Résumé
Band structure calculations of complete InAs monolayer in AlGaAs/GaAs quantum wells are performed within the framework of the extended-basis sp3d5s* tight-binding model. We show that the optical properties can be tuned from the quantum well energy below the GaAs band-gap depending on the well thickness and the position of the probe. The results are supported by differential reflectivity measurements and represent a concept for optoelectronic devices with an operation wavelength widely tuneable around 850 nm employing GaAs process technology.
Domaines
Optique / photonique| Origine | Fichiers éditeurs autorisés sur une archive ouverte |
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