Eur. Phys. J. AP
Volume 6, Number 1, April 1999
|Page(s)||33 - 39|
|Published online||15 April 1999|
Domain integral representation vs. homogenization methods for the analysis of photonic band gaps and absorbers*
Département de Recherche en Électromagnétisme (LSS/CNRS-Supélec), Supélec,
Plateau de Moulon, 91192 Gif-sur-Yvette, France
Corresponding author: email@example.com
Revised: 3 November 1998
Accepted: 17 December 1998
Published online: 15 April 1999
The reflectivity of two-dimensional pyramidal absorbers and the transmittance of photonic crystals made of dielectric fibers is analyzed by means of two approaches. In the first one an integral representation of the scattered field is used and the absorbers are modeled by a stack of gratings of infinite extent. In the second approach, the absorbers and the crystal are replaced by an equivalent multilayered medium obtained by means of two homogenization methods. We assess the efficiency of these methods with respect to parameters such as the density of the gratings, their relative permittivity and the polarization of the incident wave.
PACS: 77.84.Lf – Composite materials
© EDP Sciences, 1999
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