6533b85ffe1ef96bd12c1a7b
RESEARCH PRODUCT
Spatial correlation of laser-generated electrons and holes in quantum wells
Andrés CantareroL. I. KorovinS. T. PavlovI. G. LangManuel CardonaV. I. Belitskysubject
PhysicsSpatial correlationbusiness.industryQuantum-confined Stark effectElectronCondensed Matter PhysicsLaserSpatial distributionElectronic Optical and Magnetic Materialslaw.inventionsymbols.namesakeSemiconductorlawsymbolsAtomic physicsbusinessRaman scatteringQuantum welldescription
The spatial correlation of hot electrons and holes generated by light in a semiconductor quantum well (QW) is studied. For hot electron-hole pairs in a polar material, this correlation is determined by the interaction with LO-phonons. We analyze the distribution F N (r, K) of electrons and holes which are created in a given light absorption process, with respect to their relative separation r and total quasimomentum ħK, after the emission of a number N of LO-phonons. The relationship between the spatial distribution of electrons and holes in these intermediate states and the cross-section of multi-phonon resonant Raman scattering (MPRRS) is established. Spatial correlation effects are strongly enhanced in low-dimensional systems, a fact which is also reflected in the MPRRS efficiency
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1995-04-01 | physica status solidi (b) |