Quantum wells with zero valence-band offset: Drastic enhancement of forbidden excitonic transitions

A. Kavokin; M. Kaliteevski; S. Goupalov; J. Berger; O. Lyngnes; H. Gibbs; G. Khitrova

doi:10.1103/PhysRevB.54.R11078

Quantum wells with zero valence-band offset: Drastic enhancement of forbidden excitonic transitions

A. Kavokin, M. Kaliteevski, S. Goupalov, J. Berger, O. Lyngnes, H. Gibbs, G. Khitrova

Optical Sciences, College of

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

Forbidden (Formula presented) and (Formula presented) exciton transitions (where (Formula presented) and (Formula presented) 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 (Formula presented) exciton transition couples to the two-dimensional optical mode in a microcavity.

Original language	English (US)
Pages (from-to)	R11078-R11081
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	54
Issue number	16
DOIs	https://doi.org/10.1103/PhysRevB.54.R11078
State	Published - Jan 1 1996

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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Quantum wells with zero valence-band offset : Drastic enhancement of forbidden excitonic transitions. / Kavokin, A.; Kaliteevski, M.; Goupalov, S.; Berger, J.; Lyngnes, O.; Gibbs, H.; Khitrova, G.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 54, No. 16, 01.01.1996, p. R11078-R11081.

Research output: Contribution to journal › Article › peer-review

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