Excitons in resonantly coupled quantum wells

Allen Mark Fox; David A. B. Miller; Gabriela Livescu; John E. Cunningham; Jill E. Henry; William Jan

doi:10.1117/12.20742

1 October 1990 Excitons in resonantly coupled quantum wells

Allen Mark Fox, David A. B. Miller, Gabriela Livescu, John E. Cunningham, Jill E. Henry, William Jan

Proceedings Volume 1283, Quantum Well and Superlattice Physics III; (1990) https://doi.org/10.1117/12.20742
Event: Advances in Semiconductors and Superconductors: Physics Toward Devices Applications, 1990, San Diego, CA, United States

Abstract

We have studied excitonic effects in resonantly coupled GaAs/A1GaAs multiple quantum wells. We use photocurrent spectroscopy to deduce the resonant field from the field-dependent exciton energies, and find an unexpected variation of -10% in the resonant field between different excitonic transitions involving the same coupled electron levels. We construct a variational model of the coupled excitons which explains the results in terms of Coulomb mixing of the delocalised electron states.

Citation Download Citation

Allen Mark Fox, David A. B. Miller, Gabriela Livescu, John E. Cunningham, Jill E. Henry, and William Jan "Excitons in resonantly coupled quantum wells", Proc. SPIE 1283, Quantum Well and Superlattice Physics III, (1 October 1990); https://doi.org/10.1117/12.20742

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