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  • American Institute of Physics (AIP)  (2)
  • 1
    Electronic Resource
    Electronic Resource
    Subpicosecond hot hole dynamics in highly excited GaAs (1993)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 62 (1993), S. 522-524 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The buildup of band-edge gain is observed on a subpicosecond time scale in highly excited intrinsic GaAs. Using a kinetic model to fit the experimentally determined "gain time'' at different wavelengths, the transient behavior of the optically injected hole temperature is determined. The data are not consistent with a simple decay of the hot hole temperature due to phonon emission processes. We show that a simple estimate of the energy transfer from electrons to holes via Coulomb scattering qualitatively accounts for the observed behavior of the hole temperature.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.108899
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Transient solution of the diffusion equation for a composite system heated with a laser beam (1989)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 66 (1989), S. 5627-5629 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The general solution of the thermal diffusion equation for the case of a semi-infinite two-layer system that is heated with a localized cw laser beam of circularly uniform intensity profile is extended to times after the pulse is switched off. An application of that solution in the field of solid-state dosimetry is illustrated by simulating the experimental thermoluminescence response curves obtained from LiF:(Mg,Ti)-phosphor-coated borasilicate glass, for the special case of heating with a CO2-laser beam that has a uniform and square intensity profile: In effect, we solve the diffusion equation experimentally.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.343670
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