Femtosecond carrier dynamics in GaAs far from equilibrium

Alfred Leitenstorfer; Cornelius Fürst; Alfred Laubereau; Wolfgang Kaiser; Günther Tränkle; Günter Weimann

doi:10.1103/PhysRevLett.76.1545

Femtosecond carrier dynamics in GaAs far from equilibrium

Alfred Leitenstorfer
, Cornelius Fürst
, Alfred Laubereau
, Wolfgang Kaiser
, Günther Tränkle
, Günter Weimann

Department of Physics

Technical University of Munich
Walter Schottky Institut

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

112 Scopus citations

Abstract

The dynamics of optically generated carriers in GaAs is investigated measuring transmission changes with ultrafast time and high spectral resolution. A novel two-color 15 fs Ti:sapphire laser system allows the observation of the femtosecond kinetics of energetic carrier distributions at excitation densities as low as 10¹⁵cm⁻³. For the first time, LO phonon emission of highly excited nonequilibrium electrons is directly monitored. The contribution of the hole distribution to the data and the influence of carrier-carrier scattering is studied.

Original language	English
Pages (from-to)	1545-1548
Number of pages	4
Journal	Physical Review Letters
Volume	76
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevLett.76.1545
State	Published - 1996

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10.1103/PhysRevLett.76.1545

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abstract = "The dynamics of optically generated carriers in GaAs is investigated measuring transmission changes with ultrafast time and high spectral resolution. A novel two-color 15 fs Ti:sapphire laser system allows the observation of the femtosecond kinetics of energetic carrier distributions at excitation densities as low as 1015cm−3. For the first time, LO phonon emission of highly excited nonequilibrium electrons is directly monitored. The contribution of the hole distribution to the data and the influence of carrier-carrier scattering is studied.",

author = "Alfred Leitenstorfer and Cornelius F{\"u}rst and Alfred Laubereau and Wolfgang Kaiser and G{\"u}nther Tr{\"a}nkle and G{\"u}nter Weimann",

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T1 - Femtosecond carrier dynamics in GaAs far from equilibrium

AU - Leitenstorfer, Alfred

AU - Fürst, Cornelius

AU - Laubereau, Alfred

AU - Kaiser, Wolfgang

AU - Tränkle, Günther

AU - Weimann, Günter

PY - 1996

Y1 - 1996

N2 - The dynamics of optically generated carriers in GaAs is investigated measuring transmission changes with ultrafast time and high spectral resolution. A novel two-color 15 fs Ti:sapphire laser system allows the observation of the femtosecond kinetics of energetic carrier distributions at excitation densities as low as 1015cm−3. For the first time, LO phonon emission of highly excited nonequilibrium electrons is directly monitored. The contribution of the hole distribution to the data and the influence of carrier-carrier scattering is studied.

AB - The dynamics of optically generated carriers in GaAs is investigated measuring transmission changes with ultrafast time and high spectral resolution. A novel two-color 15 fs Ti:sapphire laser system allows the observation of the femtosecond kinetics of energetic carrier distributions at excitation densities as low as 1015cm−3. For the first time, LO phonon emission of highly excited nonequilibrium electrons is directly monitored. The contribution of the hole distribution to the data and the influence of carrier-carrier scattering is studied.

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DO - 10.1103/PhysRevLett.76.1545

M3 - Article

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VL - 76

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JO - Physical Review Letters

JF - Physical Review Letters

IS - 9

ER -

Femtosecond carrier dynamics in GaAs far from equilibrium

Abstract

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