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Träfflista för sökning "L773:1084 7529 OR L773:1520 8532 srt2:(1993-1994)"

Sökning: L773:1084 7529 OR L773:1520 8532 > (1993-1994)

  • Resultat 1-2 av 2
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1.
  • Fridén, Jonas, et al. (författare)
  • Transient electromagnetic wave propagation in anisotropic dispersive media
  • 1993
  • Ingår i: Journal of the Optical Society of America A: Optics and Image Science, and Vision. - 1084-7529. ; 10:12, s. 2618-2627
  • Tidskriftsartikel (refereegranskat)abstract
    • Transient electromagnetic wave propagation in a stratified, anisotropic, dispersive medium is considered. Specifically, the direct scattering problem is addressed. The dispersive, anisotropic medium is modeled by constitutive relations (a 3 3 matrix-valued susceptibility operator) containing time convolution integrals. In the general case, nine different susceptibility kernels characterize the medium. An incident plane wave impinges obliquely upon a finite slab consisting of a stratified anisotropic medium. The scattered fields are obtained as time convolutions of the incident field with the scattering kernels. The scattering (reflection and transmission) kernels are uniquely determined by the slab and are independent of the incident field. The scattering problem is solved by a wave-splitting technique. Two different methods for determining the scattering kernels are presented: an embedding and a Green's function approach. Explicit analytic expressions of the wave front are given for a special class of media. Some numerical examples illustrate the analysis.
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2.
  • Karlsson, Anders, et al. (författare)
  • Transient wave propagation in composite media: Green's functions approach
  • 1993
  • Ingår i: Journal of the Optical Society of America A. - 1084-7529. ; 10:5, s. 886-895
  • Tidskriftsartikel (refereegranskat)abstract
    • A generalized Green's function technique for wave propagation of transient fields in one-dimensional media is developed. The medium is partitioned into an arbitrary number of subslabs for which Green operators that map the incident field to the internal fields are defined. Relations between the Green operators for the entire medium and the Green operators for the subslabs are derived. The technique leads to fast numerical algorithms that are especially efficient for dispersive media. The numerical examples focus on the comparison between wave propagation in dispersive and nondispersive media.
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  • Resultat 1-2 av 2
Typ av publikation
tidskriftsartikel (2)
Typ av innehåll
refereegranskat (2)
Författare/redaktör
Karlsson, Anders (1)
Kristensson, Gerhard (1)
Fridén, Jonas (1)
Stewart, Rodney D. (1)
Otterheim, Henrik (1)
Stewart, Rodney (1)
Lärosäte
Lunds universitet (2)
Språk
Engelska (2)
Forskningsämne (UKÄ/SCB)
Teknik (2)
År
1993 (2)

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