Coulomb effects in femtosecond nonlinear transmission of semiconductor nanocrystals

Victor I Klimov; S. Hunsche; H. Kurz

doi:10.1002/pssb.2221880123

Coulomb effects in femtosecond nonlinear transmission of semiconductor nanocrystals

Victor I Klimov, S. Hunsche, H. Kurz

Los Alamos National Laboratory

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

13 Citations (Scopus)

Abstract

The dynamics of carrier‐induced absorption changes in CdSe nanocrystals excited by 2 and 4 eV photons are investigated with femtosecond pump and probe spectroscopy. After excitation with 4 eV photons a transient red shift of the lowest optical transition is observed in the initial phase of carrier relaxation. This shift is attributed to the Coulomb two‐electron‐hole‐pair interaction (a biexciton effect).

Original language	English
Pages (from-to)	259-267
Number of pages	9
Journal	Physica Status Solidi (B): Basic Research
Volume	188
Issue number	1
DOIs	https://doi.org/10.1002/pssb.2221880123
Publication status	Published - 1995

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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title = "Coulomb effects in femtosecond nonlinear transmission of semiconductor nanocrystals",

abstract = "The dynamics of carrier‐induced absorption changes in CdSe nanocrystals excited by 2 and 4 eV photons are investigated with femtosecond pump and probe spectroscopy. After excitation with 4 eV photons a transient red shift of the lowest optical transition is observed in the initial phase of carrier relaxation. This shift is attributed to the Coulomb two‐electron‐hole‐pair interaction (a biexciton effect).",

author = "Klimov, {Victor I} and S. Hunsche and H. Kurz",

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AU - Hunsche, S.

AU - Kurz, H.

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AB - The dynamics of carrier‐induced absorption changes in CdSe nanocrystals excited by 2 and 4 eV photons are investigated with femtosecond pump and probe spectroscopy. After excitation with 4 eV photons a transient red shift of the lowest optical transition is observed in the initial phase of carrier relaxation. This shift is attributed to the Coulomb two‐electron‐hole‐pair interaction (a biexciton effect).

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