Quantum wells with zero valence-band offset

Drastic enhancement of forbidden excitonic transitions

A. V. Kavokin, M. A. Kaliteevski, S. V. Goupalov, J. D. Berger, O. Lyngnes, H. M. Gibbs, Galina Khitrova, A. Ribayrol, A. Bellabchara, P. Lefebvre, D. Coquillat, J. P. Lascaray

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Forbidden e1hh3 and e1/h3 exciton transitions (where hh and lh are heavy-hole and light-hole, respectively) appear in magnetooptical spectra of quantum wells that undergo a type-I-type-II band-alignment transition, here for ordinary (In,Ga)As/GaAs multiple quantum wells and a single CdTe quantum well with a (Cd,Mn)Te semimagnetic barrier exhibiting a giant Zeeman effect. The oscillator strength becomes so strong in a field of 11.25 T that vacuum-field Rabi splitting is clearly seen in reflection spectra when the e1lh3 exciton transition couples to the two-dimensional optical mode in a microcavity.

Original languageEnglish (US)
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume54
Issue number16
StatePublished - Oct 15 1996

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forbidden transitions
Electron transitions
Valence bands
Semiconductor quantum wells
quantum wells
valence
Excitons
augmentation
excitons
Microcavities
Zeeman effect
oscillator strengths
alignment
Vacuum
vacuum
LDS 751

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Kavokin, A. V., Kaliteevski, M. A., Goupalov, S. V., Berger, J. D., Lyngnes, O., Gibbs, H. M., ... Lascaray, J. P. (1996). Quantum wells with zero valence-band offset: Drastic enhancement of forbidden excitonic transitions. Physical Review B - Condensed Matter and Materials Physics, 54(16).

Quantum wells with zero valence-band offset : Drastic enhancement of forbidden excitonic transitions. / Kavokin, A. V.; Kaliteevski, M. A.; Goupalov, S. V.; Berger, J. D.; Lyngnes, O.; Gibbs, H. M.; Khitrova, Galina; Ribayrol, A.; Bellabchara, A.; Lefebvre, P.; Coquillat, D.; Lascaray, J. P.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 54, No. 16, 15.10.1996.

Research output: Contribution to journalArticle

Kavokin, AV, Kaliteevski, MA, Goupalov, SV, Berger, JD, Lyngnes, O, Gibbs, HM, Khitrova, G, Ribayrol, A, Bellabchara, A, Lefebvre, P, Coquillat, D & Lascaray, JP 1996, 'Quantum wells with zero valence-band offset: Drastic enhancement of forbidden excitonic transitions', Physical Review B - Condensed Matter and Materials Physics, vol. 54, no. 16.
Kavokin, A. V. ; Kaliteevski, M. A. ; Goupalov, S. V. ; Berger, J. D. ; Lyngnes, O. ; Gibbs, H. M. ; Khitrova, Galina ; Ribayrol, A. ; Bellabchara, A. ; Lefebvre, P. ; Coquillat, D. ; Lascaray, J. P. / Quantum wells with zero valence-band offset : Drastic enhancement of forbidden excitonic transitions. In: Physical Review B - Condensed Matter and Materials Physics. 1996 ; Vol. 54, No. 16.
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