Anisotropy in the interband transitions of (110) oriented quantum wells

D. Gershoni, I. Brener, G. A. Baraff, S. N.G. Chu, L. N. Pfeiffer, K. West

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The reduced symmetry of the quantum confinement direction which is inherent to quantum wells grown on (110) oriented substrates results in in-plane polarization anisotropy of the optical transitions. We present a study of this anisotropy using photoluminescence excitation spectroscopy of (110) and (100) oriented quantum well structures. The spectral features observed in the photoluminescence-excitation spectra of these structures are modeled using an eight band k p-type effective mass theory. We directly determine the valence band anisotropy of the quantum well material from the orientational dependence of the transition energies and oscillator strengths. We found (γ3 - γ2)/(γ3 + γ2) = 0.18 ± 0.03, where γ2.3 are the GaAs Luttinger parameters.

Original languageEnglish (US)
Title of host publicationInstitute of Physics Conference Series
PublisherPubl by IOP Publishing Ltd
Pages419-424
Number of pages6
ISBN (Print)0854984100
StatePublished - 1991
Externally publishedYes
EventProceedings of the 18th International Symposium on Gallium Arsenide and Related Compounds - Seattle, WA, USA
Duration: Sep 9 1991Sep 12 1991

Publication series

NameInstitute of Physics Conference Series
Volume120
ISSN (Print)0951-3248

Conference

ConferenceProceedings of the 18th International Symposium on Gallium Arsenide and Related Compounds
CitySeattle, WA, USA
Period9/9/919/12/91

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy

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