Many-body effects in type II heterostructures

I. Galbraith, Rudolf Binder, Stephan W Koch, G. R. Olbright, A. Owyoung, J. Klem, W. S. Fu

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

1 Citation (Scopus)

Abstract

A theoretical description of large optical nonlinearities in type II heterostructures was derived. The electronic states in such structures confine the electrons and holes in spatially separate layers. The interband absorption of the GaAs layer in the presence of a quasi-equilibrium hole plasma was calculated. This involves solving the Bethe-Salpeter equation containing dynamic screening of the Coulomb potential, the corresponding Hartree-Fock self-energies, and phase-space filling. The calculated absorption spectra show a large blue shift and bleaching of the heavy-hole exciton in agreement with recent experimental results. Combining the space charge shifts with the many-body bandgap renormalization, the shift in the photoluminescence energy associated with the type II recombination was calculated. Depending on the structure, the luminescence energy can shift either blue or red. Using the above calculations, it should be possible to engineer structures that maximize the already large nonlinear effects.

Original languageEnglish (US)
Title of host publicationXVII International Conference on Quantum Electronics. Digest of
PublisherPubl by IEEE
Pages126-127
Number of pages2
StatePublished - 1990
Externally publishedYes
Event17th International Conference on Quantum Electronics - IQEC '90 - Anaheim, CA, USA
Duration: May 21 1990May 25 1990

Other

Other17th International Conference on Quantum Electronics - IQEC '90
CityAnaheim, CA, USA
Period5/21/905/25/90

Fingerprint

Electronic states
Bleaching
Electric space charge
Excitons
Heterojunctions
Luminescence
Absorption spectra
Photoluminescence
Screening
Energy gap
Plasmas
Engineers
Electrons

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Galbraith, I., Binder, R., Koch, S. W., Olbright, G. R., Owyoung, A., Klem, J., & Fu, W. S. (1990). Many-body effects in type II heterostructures. In XVII International Conference on Quantum Electronics. Digest of (pp. 126-127). Publ by IEEE.

Many-body effects in type II heterostructures. / Galbraith, I.; Binder, Rudolf; Koch, Stephan W; Olbright, G. R.; Owyoung, A.; Klem, J.; Fu, W. S.

XVII International Conference on Quantum Electronics. Digest of. Publ by IEEE, 1990. p. 126-127.

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

Galbraith, I, Binder, R, Koch, SW, Olbright, GR, Owyoung, A, Klem, J & Fu, WS 1990, Many-body effects in type II heterostructures. in XVII International Conference on Quantum Electronics. Digest of. Publ by IEEE, pp. 126-127, 17th International Conference on Quantum Electronics - IQEC '90, Anaheim, CA, USA, 5/21/90.
Galbraith I, Binder R, Koch SW, Olbright GR, Owyoung A, Klem J et al. Many-body effects in type II heterostructures. In XVII International Conference on Quantum Electronics. Digest of. Publ by IEEE. 1990. p. 126-127
Galbraith, I. ; Binder, Rudolf ; Koch, Stephan W ; Olbright, G. R. ; Owyoung, A. ; Klem, J. ; Fu, W. S. / Many-body effects in type II heterostructures. XVII International Conference on Quantum Electronics. Digest of. Publ by IEEE, 1990. pp. 126-127
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