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

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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

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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., Mysyrowicz, A., Liu, L. C., & 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