Biexciton effects in femtosecond nonlinear transmission of semiconductor quantum dots

Victor I Klimov, S. Hunsche, H. Kurz

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The dynamics of carrier-induced absorption changes in CdSe quantum dots are investigated with femtosecond spectroscopy. After excitation with 4-eV photons a redshift of the lowest optical transition is observed in the initial phase of carrier relaxation. This shift is attributed to a biexciton effect where two electron-hole pairs interact via the Coulomb potential.

Original languageEnglish
Pages (from-to)8110-8113
Number of pages4
JournalPhysical Review B
Issue number11
Publication statusPublished - 1994


ASJC Scopus subject areas

  • Condensed Matter Physics

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