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  • PACS. 42.70.Qs Photonic bandgap materials – 81.07.-b Nanoscale materials and structures: fabrication and characterization  (1)
  • PACS. 52.25.Vy Impurities in plasmas – 52.35.Mw Nonlinear phenomena: waves, wave propagation, aaand other interactions (including parametric effects, mode coupling, ponderomotive effects, etc.) – 52.35.Ra Plasma turbulence  (1)
  • Springer  (2)
  • American Association for the Advancement of Science
  • American Institute of Physics (AIP)
  • American Physical Society
  • American Society of Hematology
  • Annual Reviews
  • Institute of Physics
  • International Union of Crystallography
  • 2000-2004  (2)
  • 1955-1959
  • 1945-1949
  • 2002  (2)
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  • Springer  (2)
  • American Association for the Advancement of Science
  • American Institute of Physics (AIP)
  • American Physical Society
  • American Society of Hematology
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  • 2000-2004  (2)
  • 1955-1959
  • 1945-1949
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  • 2002  (2)
  • 1
    ISSN: 1434-6036
    Keywords: PACS. 42.70.Qs Photonic bandgap materials – 81.07.-b Nanoscale materials and structures: fabrication and characterization
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: Reflectance measurements at variable angle of incidence are performed on GaAs photonic crystal waveguides with unconventional square lattices. The technique yields the dispersion of photonic bands for the investigated lattices, as first shown by Astratov et al. [Phys. Rev. B 60, R16225 (1999)]. A sample with a square lattice of air rings and small air fraction yields narrow resonant structures and a dispersion of photonic modes close to that of free photons. Another sample with a square lattice of dielectric squares and large air fraction leads to broader structures and to a dispersion of photonic modes which differs strongly for the two polarizations of light: this sample has a pseudo-gap around 1 micron wavelength. The experimental results are in good agreement with theoretical calculations of the reflectance and of the photonic mode dispersion in the photonic crystal slabs.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 21 (2002), S. 343-345 
    ISSN: 1434-6079
    Keywords: PACS. 52.25.Vy Impurities in plasmas – 52.35.Mw Nonlinear phenomena: waves, wave propagation, aaand other interactions (including parametric effects, mode coupling, ponderomotive effects, etc.) – 52.35.Ra Plasma turbulence
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: The generation of zonal flows by flute-like interchange modes in a nonuniform magnetoplasma is considered. The guiding center particle drifts are then used to derive a system of coupled mode equations. The latter are Fourier analyzed to obtain a nonlinear dispersion relation, which exhibits the excitation of zonal flows by the ponderomotive force of the interchange modes. The growth rate of the parametrically driven zonal flows is obtained.
    Type of Medium: Electronic Resource
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