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Spin-polarized excitons in pseudomorphic, strained In0.16Ga0.84As/Al0.29Ga0.71As quantum wells on GaAs

Spin-polarisierte Exzitonen in pseudomorphen InGaAs/AlGaAs Quantentrögen auf GaAs-Substrat

D'Andrea, A.:
Optics of Excitons in Confined Systems '91. Proceedings
Bristol, 1992 (Institute of Physics - Conference Series 123)
ISBN: 0-85498-413-5
pp.105-108 : Abb.,Lit.
International Meeting on Optics of Excitons in Confined Systems <1991, Giardini Naxos>
Conference Paper
Fraunhofer IAF ()
Anregungsspektroskopie; band offset; Banddiskontinuität; excitation spectroscopy; exciton; Exziton; optical pumping; optisches Pumpen; strained quantum well; verspannte Quantum Well

Optical pumping techniques and time-resolved photoluminescence have been used to study spin and exciton lifetimes in two pseudomorphic quantum well systems as a function of well width. From excitation spectroscopy with circularly polarized light, band offsets for the Insub0.16Gasub0.84As/Alsub0.29Gasub0.71As system are deduced.