Closed-form expression for the scattering coefficients at an interface between two periodic media - Institut d'Optique Graduate School Access content directly
Journal Articles Applied Physics Letters Year : 2011

Closed-form expression for the scattering coefficients at an interface between two periodic media

Abstract

We use the Bloch-mode orthogonality to derive simple closed-form expressions for the scattering coefficients at an interface between two periodic media, a computationally-challenging electromagnetic scattering problem that can be solved only with advanced numerical tools. The derivation relies on the assumptions that the interface is illuminated by the fundamental Bloch mode and that the two media have only slightly different geometrical parameters. Through comparison with fully-vectorial three-dimensional computations, the analytical expressions are shown to be highly predictive for various geometries, including dielectric waveguides and metallic metamaterials. They can thus be used with confidence for designing and engineering stacks of periodic structures.
Fichier principal
Vignette du fichier
00680578.pdf (307.52 Ko) Télécharger le fichier
Origin : Publisher files allowed on an open archive
Loading...

Dates and versions

hal-00680578 , version 1 (05-04-2012)

Identifiers

Cite

Wojciech Śmigaj, Philippe Lalanne, Jianji Yang, Thomas Paul, C. Rockstuhl, et al.. Closed-form expression for the scattering coefficients at an interface between two periodic media. Applied Physics Letters, 2011, 98 (11), pp.111107. ⟨10.1063/1.3565970⟩. ⟨hal-00680578⟩
234 View
429 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More