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RESEARCH PRODUCT
Resonant Rayleigh scattering in quantum well structures
Franco BoganiAnna VinattieriMarcello ColocciAndrés CantareroV. I. BelitskyMassimo GurioliS. T. Pavlovsubject
PhysicsPhotoluminescenceCondensed matter physicsGeneral ChemistryCondensed Matter::Mesoscopic Systems and Quantum Hall EffectCondensed Matter PhysicsMolecular physicsSpectral linesymbols.namesakeLaser linewidthStokes shiftMaterials ChemistrysymbolsPhotoluminescence excitationRayleigh scatteringRayleigh waveQuantum welldescription
Abstract We report continuous wave experiments on resonant Rayleigh scattering (RRS) performed on high quality GaAs AlGaAs quantum well structures. The simultaneous measurement of the resonant Rayleigh scattering and of the photoluminescence excitation (PLE) allows us to resolve very small differences between the two spectra. We show that, even in very good samples, there is a small but detectable Stokes shift of the RRS profile with respect to the PLE. It is also found that the RRS profile has a smaller linewidth and is sensitive to bound exciton transitions which are not detectable in the PLE. We compare our data with previous findings and discuss possible origins of the Stokes shift.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1996-02-01 | Solid State Communications |