Transport correlation coefficients and photoconductive switching

Robert O. Grondin, Meng J. Kann

    Research output: Contribution to journalArticle

    6 Citations (Scopus)

    Abstract

    The use of a retarded Langevin equation for the development of a simple model of a photoconductive switch is described. This model allows the the accurate determination of carrier transport transients in the switch provided that certain commonly made assumptions concerning spatial homogeneity remain valid and an appropiate optical pulse energy and wavelength are chosen. The model utilizes velocity autocorrelation functions which could be estimated by Monte Carlo techniques or potentially measured by applying the model to appropiate experimental data. The validity of the model is demonstrated for wavelengths in which carriers are generated somewhat below the threshold for intervalley scattering. A mechanism by which an applied field can actually delay the initial rise in a photocurrent in a subpicosecond photoconductive experiment is described as well.

    Original languageEnglish (US)
    Pages (from-to)567-570
    Number of pages4
    JournalSolid State Electronics
    Volume31
    Issue number3-4
    DOIs
    StatePublished - 1988

    Fingerprint

    correlation coefficients
    switches
    Photoconductive switches
    Wavelength
    Carrier transport
    Photocurrents
    Autocorrelation
    wavelengths
    autocorrelation
    homogeneity
    photocurrents
    Laser pulses
    Switches
    Scattering
    thresholds
    pulses
    scattering
    Experiments
    energy

    Keywords

    • equivalent circuits for photoconductors
    • Langevin equations
    • Photoconductive switching
    • retarded transport theory
    • velocity autocorrelation functions
    • velocity overshoot

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering
    • Electronic, Optical and Magnetic Materials
    • Condensed Matter Physics

    Cite this

    Transport correlation coefficients and photoconductive switching. / Grondin, Robert O.; Kann, Meng J.

    In: Solid State Electronics, Vol. 31, No. 3-4, 1988, p. 567-570.

    Research output: Contribution to journalArticle

    Grondin, Robert O. ; Kann, Meng J. / Transport correlation coefficients and photoconductive switching. In: Solid State Electronics. 1988 ; Vol. 31, No. 3-4. pp. 567-570.
    @article{6dbbd60a72714fc0b80c9caddc7a1b3a,
    title = "Transport correlation coefficients and photoconductive switching",
    abstract = "The use of a retarded Langevin equation for the development of a simple model of a photoconductive switch is described. This model allows the the accurate determination of carrier transport transients in the switch provided that certain commonly made assumptions concerning spatial homogeneity remain valid and an appropiate optical pulse energy and wavelength are chosen. The model utilizes velocity autocorrelation functions which could be estimated by Monte Carlo techniques or potentially measured by applying the model to appropiate experimental data. The validity of the model is demonstrated for wavelengths in which carriers are generated somewhat below the threshold for intervalley scattering. A mechanism by which an applied field can actually delay the initial rise in a photocurrent in a subpicosecond photoconductive experiment is described as well.",
    keywords = "equivalent circuits for photoconductors, Langevin equations, Photoconductive switching, retarded transport theory, velocity autocorrelation functions, velocity overshoot",
    author = "Grondin, {Robert O.} and Kann, {Meng J.}",
    year = "1988",
    doi = "10.1016/0038-1101(88)90343-7",
    language = "English (US)",
    volume = "31",
    pages = "567--570",
    journal = "Solid-State Electronics",
    issn = "0038-1101",
    publisher = "Elsevier Limited",
    number = "3-4",

    }

    TY - JOUR

    T1 - Transport correlation coefficients and photoconductive switching

    AU - Grondin, Robert O.

    AU - Kann, Meng J.

    PY - 1988

    Y1 - 1988

    N2 - The use of a retarded Langevin equation for the development of a simple model of a photoconductive switch is described. This model allows the the accurate determination of carrier transport transients in the switch provided that certain commonly made assumptions concerning spatial homogeneity remain valid and an appropiate optical pulse energy and wavelength are chosen. The model utilizes velocity autocorrelation functions which could be estimated by Monte Carlo techniques or potentially measured by applying the model to appropiate experimental data. The validity of the model is demonstrated for wavelengths in which carriers are generated somewhat below the threshold for intervalley scattering. A mechanism by which an applied field can actually delay the initial rise in a photocurrent in a subpicosecond photoconductive experiment is described as well.

    AB - The use of a retarded Langevin equation for the development of a simple model of a photoconductive switch is described. This model allows the the accurate determination of carrier transport transients in the switch provided that certain commonly made assumptions concerning spatial homogeneity remain valid and an appropiate optical pulse energy and wavelength are chosen. The model utilizes velocity autocorrelation functions which could be estimated by Monte Carlo techniques or potentially measured by applying the model to appropiate experimental data. The validity of the model is demonstrated for wavelengths in which carriers are generated somewhat below the threshold for intervalley scattering. A mechanism by which an applied field can actually delay the initial rise in a photocurrent in a subpicosecond photoconductive experiment is described as well.

    KW - equivalent circuits for photoconductors

    KW - Langevin equations

    KW - Photoconductive switching

    KW - retarded transport theory

    KW - velocity autocorrelation functions

    KW - velocity overshoot

    UR - http://www.scopus.com/inward/record.url?scp=0023983172&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=0023983172&partnerID=8YFLogxK

    U2 - 10.1016/0038-1101(88)90343-7

    DO - 10.1016/0038-1101(88)90343-7

    M3 - Article

    VL - 31

    SP - 567

    EP - 570

    JO - Solid-State Electronics

    JF - Solid-State Electronics

    SN - 0038-1101

    IS - 3-4

    ER -