Direct measurements of femtosecond energy dissipation processes of hot electrons in a gold film

Akihide Hibara, Tomohiro Morishita, Isao Tsuyumoto, Akira Harata, Takehiko Kitamori, Tsuguo Sawada

    Research output: Contribution to journalArticle

    10 Citations (Scopus)

    Abstract

    Energy dissipation processes of hot electrons in a gold thin film were measured by a femtosecond time-resolved transient reflecting grating method. The processes were analyzed using the two-temperature model and the theory of the transient grating method. It was found that the electron-phonon coupling and thermal diffusion processes could be investigated independently. Temperature dependence of the electron-phonon coupling factor and the thermal conductivity was investigated quantitatively. The results suggested that the nonthermal states of hot electrons still contribute to the dissipation processes on time scales of several picoseconds.

    Original languageEnglish
    Pages (from-to)2983-2987
    Number of pages5
    JournalJapanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
    Volume38
    Issue number5 A
    Publication statusPublished - 1999

    Fingerprint

    Hot electrons
    hot electrons
    Energy dissipation
    energy dissipation
    Gold
    gratings
    gold
    Thermal diffusion
    Electrons
    thermal diffusion
    Thermal conductivity
    electrons
    thermal conductivity
    dissipation
    Thin films
    Temperature
    temperature dependence
    thin films
    temperature

    All Science Journal Classification (ASJC) codes

    • Physics and Astronomy (miscellaneous)

    Cite this

    Direct measurements of femtosecond energy dissipation processes of hot electrons in a gold film. / Hibara, Akihide; Morishita, Tomohiro; Tsuyumoto, Isao; Harata, Akira; Kitamori, Takehiko; Sawada, Tsuguo.

    In: Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes, Vol. 38, No. 5 A, 1999, p. 2983-2987.

    Research output: Contribution to journalArticle

    Hibara, Akihide ; Morishita, Tomohiro ; Tsuyumoto, Isao ; Harata, Akira ; Kitamori, Takehiko ; Sawada, Tsuguo. / Direct measurements of femtosecond energy dissipation processes of hot electrons in a gold film. In: Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes. 1999 ; Vol. 38, No. 5 A. pp. 2983-2987.
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    AU - Harata, Akira

    AU - Kitamori, Takehiko

    AU - Sawada, Tsuguo

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