Evidence for intervalence band coherences in semiconductor quantum wells via coherently coupled optical stark shifts

M. E. Donovan, A. Schülzgen, J. Lee, Pierre Alexandre Blanche, Nasser N Peyghambarian, Galina Khitrova, H. M. Gibbs, I. Rumyantsev, Nai-Hang Kwong, R. Takayama, Z. S. Yang, Rudolf Binder

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Abstract

We report the experimental observation of coherently coupled heavy-hole-light-hole Stark shifts, i.e., light-hole exciton shifts under heavy-hole exciton pumping conditions, in InGaAs quantum wells. The theoretical analysis of the data is based on a full many-body approach (dynamics-controlled truncation formalism) in the third-order nonlinear optical regime. It is shown that the Stark shift data can be interpreted as strong evidence of suitably defined nonradiative intervalence band coherences in a semiconductor quantum well. Hence, the observations establish a semiconductor analog of Raman coherences in three-level atoms.

Original languageEnglish (US)
Pages (from-to)237402-1-237402-4
JournalPhysical Review Letters
Volume87
Issue number23
DOIs
StatePublished - Dec 3 2001

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quantum wells
shift
excitons
pumping
analogs
formalism
approximation
atoms

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Evidence for intervalence band coherences in semiconductor quantum wells via coherently coupled optical stark shifts. / Donovan, M. E.; Schülzgen, A.; Lee, J.; Blanche, Pierre Alexandre; Peyghambarian, Nasser N; Khitrova, Galina; Gibbs, H. M.; Rumyantsev, I.; Kwong, Nai-Hang; Takayama, R.; Yang, Z. S.; Binder, Rudolf.

In: Physical Review Letters, Vol. 87, No. 23, 03.12.2001, p. 237402-1-237402-4.

Research output: Contribution to journalArticle

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AU - Khitrova, Galina

AU - Gibbs, H. M.

AU - Rumyantsev, I.

AU - Kwong, Nai-Hang

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AU - Yang, Z. S.

AU - Binder, Rudolf

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