Grating enhanced quantum well detector
- 15 December 1985
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 47 (12), 1257-1259
- https://doi.org/10.1063/1.96434
Abstract
An infrared detector based on the excitation of carriers out of a modulation-doped quantum well is theoretically investigated. The efficiency of the detector is increased by using a grating to enhance the fields in the well. Scattering effects are taken into account by designing the quantum well so that upon excitation carriers will escape in a short time compared to the time it takes to scatter back into the well. Despite this constraint, a quantum efficiency of 90% is shown to be possible for a GaAs-AlGaAs quantum well with a carrier density of 1012 cm−2.Keywords
This publication has 14 references indexed in Scilit:
- On the scattering of electrons by polar optical phonons in quasi-2D quantum wellsJournal of Physics C: Solid State Physics, 1983
- Internal photoemission from quantum well heterojunction superlattices by phononless free-carrier absorptionApplied Physics Letters, 1983
- The electron-phonon interaction in quasi-two-dimensional semiconductor quantum-well structuresJournal of Physics C: Solid State Physics, 1982
- Resonance Anomalies in the Lamellar GratingOptica Acta: International Journal of Optics, 1979
- Electrodynamics of quasi-two-dimensional electronsPhysical Review B, 1977
- Calculated Energy Levels and Optical Absorption in-Type Si Accumulation Layers at Low TemperaturePhysical Review Letters, 1974
- Diffraction par un reseau lamellaire infiniment conducteurOptics Communications, 1972
- Surface-Plasmon Resonance Effect in Grating DiffractionPhysical Review Letters, 1968
- A New Theory of Wood’s Anomalies on Optical GratingsApplied Optics, 1965
- Zur Theorie der Intensitätsanomalien der BeugungAnnalen der Physik, 1938