Confinement-induced valence-band mixing in CdS quantum dots observed by two-photon spectroscopy

K. I. Kang, B. P. McGinnis, Sandalphon, Y. Z. Hu, S. W. Koch, N. Peyghambarian, A. Mysyrowicz, L. C. Liu, S. H. Risbud

Research output: Contribution to journalArticle

70 Citations (Scopus)

Abstract

One- and two-photon absorption spectra of the quantum-confined transitions of CdS quantum dots are reported. The results show significant deviations from calculations based on the parabolic-valence-band approximation. The near-degenerate one- and two-photon transitions observed experimentally, and confirmed theoretically using Luttinger theory and numerical matrix diagonalization, clearly demonstrate the effects of valence-band mixing and Coulomb interaction.

Original languageEnglish
Pages (from-to)3465-3468
Number of pages4
JournalPhysical Review B
Volume45
Issue number7
DOIs
Publication statusPublished - 1992 Jan 1

Fingerprint

Valence bands
Semiconductor quantum dots
Photons
quantum dots
Spectroscopy
valence
photons
spectroscopy
Electron transitions
Coulomb interactions
Absorption spectra
absorption spectra
deviation
approximation
interactions

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

Cite this

Kang, K. I., McGinnis, B. P., Sandalphon, Hu, Y. Z., Koch, S. W., Peyghambarian, N., ... Risbud, S. H. (1992). Confinement-induced valence-band mixing in CdS quantum dots observed by two-photon spectroscopy. Physical Review B, 45(7), 3465-3468. https://doi.org/10.1103/PhysRevB.45.3465
Kang, K. I. ; McGinnis, B. P. ; Sandalphon ; Hu, Y. Z. ; Koch, S. W. ; Peyghambarian, N. ; Mysyrowicz, A. ; Liu, L. C. ; Risbud, S. H. / Confinement-induced valence-band mixing in CdS quantum dots observed by two-photon spectroscopy. In: Physical Review B. 1992 ; Vol. 45, No. 7. pp. 3465-3468.
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Kang, KI, McGinnis, BP, Sandalphon, Hu, YZ, Koch, SW, Peyghambarian, N, Mysyrowicz, A, Liu, LC & Risbud, SH 1992, 'Confinement-induced valence-band mixing in CdS quantum dots observed by two-photon spectroscopy', Physical Review B, vol. 45, no. 7, pp. 3465-3468. https://doi.org/10.1103/PhysRevB.45.3465

Confinement-induced valence-band mixing in CdS quantum dots observed by two-photon spectroscopy. / Kang, K. I.; McGinnis, B. P.; Sandalphon; Hu, Y. Z.; Koch, S. W.; Peyghambarian, N.; Mysyrowicz, A.; Liu, L. C.; Risbud, S. H.

In: Physical Review B, Vol. 45, No. 7, 01.01.1992, p. 3465-3468.

Research output: Contribution to journalArticle

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AU - McGinnis, B. P.

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AU - Hu, Y. Z.

AU - Koch, S. W.

AU - Peyghambarian, N.

AU - Mysyrowicz, A.

AU - Liu, L. C.

AU - Risbud, S. H.

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AB - One- and two-photon absorption spectra of the quantum-confined transitions of CdS quantum dots are reported. The results show significant deviations from calculations based on the parabolic-valence-band approximation. The near-degenerate one- and two-photon transitions observed experimentally, and confirmed theoretically using Luttinger theory and numerical matrix diagonalization, clearly demonstrate the effects of valence-band mixing and Coulomb interaction.

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Kang KI, McGinnis BP, Sandalphon, Hu YZ, Koch SW, Peyghambarian N et al. Confinement-induced valence-band mixing in CdS quantum dots observed by two-photon spectroscopy. Physical Review B. 1992 Jan 1;45(7):3465-3468. https://doi.org/10.1103/PhysRevB.45.3465