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Optical theorem and forward scattering sum rule for periodic structures

Författare:
Publiceringsår: 2012
Språk: Engelska
Sidor: 3818-3826
Publikation/Tidskrift/Serie: IEEE Transactions on Antennas and Propagation
Volym: 60
Nummer: 8
Dokumenttyp: Artikel i tidskrift
Förlag: IEEE--Institute of Electrical and Electronics Engineers Inc.

Sammanfattning

Abstract in Undetermined

Based on energy conservation, an optical theorem is constructed for a slab having an arbitrary periodic microstructure in a plane. A sum rule for low pass structures is derived using analytic properties of Herglotz functions based on causality and passivity. The sum rule relates the total cross section to the static polarizability per unit cell, and quantifies the interaction between the slab and electromagnetic fields possible over all wavelengths. The results are illustrated with several numerical and experimental examples.

Nyckelord

  • Electrical Engineering, Electronic Engineering, Information Engineering
  • sum rule
  • cross section
  • polarizability

Övriga

Published
  • Electromagnetic theory-lup-obsolete
  • ISSN: 0018-926X

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