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  • American Institute of Physics (AIP)  (3)
  • 2010-2014
  • 1995-1999  (3)
  • 1
    Electronic Resource
    Electronic Resource
    Optical absorption spectra of C70 thin films (1996)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 80 (1996), S. 459-463 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Both optical transmission spectroscopy and photothermal deflection spectroscopy are used to determine the spectra of C70 thin films over a wide energy range (0.6–6.5 eV). Based on a molecular orbital model, the optical transitions for the C70 thin film are analyzed. The weak absorption spectra of C70 thin films are similar to that of an amorphous semiconductor. The optical energy gap is derived by a Tauc plot as 1.66 eV. The gap region can be described in terms used for amorphous semiconductors, having features such as an Urbach edge and subgap defect absorption, which are interpreted as a broadening due to disorder or impurities. The effects of the deflection medium on the weak absorption spectra of C70 films are discussed. © 1996 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.362747
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Beam characteristics of short-pulse radiation with electromagnetic missile effect (1998)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 83 (1998), S. 5040-5044 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Beam characteristics such as beamwidth and beam intensity of short-pulse radiation with electromagnetic missile effect, not restricted to the electromagnetic missile, are generally range dependent in pulse propagation. An effective measure to study such beam characteristics is to investigate the local drop rate of the energy pattern in the beam profile and the local decay rate of energy in the pulse beam. It is shown that both the energy decay rate and the energy drop rate are definitely determined by the time–space source parameters so that the beam characteristics can be readily evaluated and properly controlled. Moreover, the underlying relation between the slow decay rate and the energy drop rate are constructed, which shows perfect harmony in achieving slower-energy decay and higher-energy concentration in the beam. © 1998 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.367320
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    A remark on fast decay effect in the electromagnetic missile theory (1997)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 82 (1997), S. 893-895 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The fast decay effect of energy in electromagnetic (EM) radiation as deduced from the EM missile theory is demonstrated to be unrealistic. The inferences drawn from the EM missile results involving such a fast decay effect must be modified by taking into account the contribution from the band-limited spectrum, which will yield reasonable results. © 1997 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.366273
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    Paper (German National Licenses)
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