%0 Journal Article
%T Mirage and superbending effect in two-dimensional graded photonic crystals
%+ Groupe d'étude des semiconducteurs (GES)
%A Centeno, Emmanuel
%A Cassagne, David
%A Albert, Jean-Paul
%< avec comité de lecture
%Z 06-030
%@ 1098-0121
%J Physical Review B: Condensed Matter and Materials Physics (1998-2015)
%I American Physical Society
%V 73
%P 235119
%8 2006
%D 2006
%R 10.1103/PhysRevB.73.235119
%K SUPERPRISM PHENOMENA
%K DOMAIN
%K GUIDE
%Z Physics [physics]/Condensed Matter [cond-mat]/Other [cond-mat.other]Journal articles
%X We present a study of graded photonic crystals presenting a mirage effect. This light bending is understood through parametric studies of the isofrequency curves. We derive a model based on the effective index computation and on the Eikonal equation in order to demonstrate that photonic mirages originate from the same physical principles as atmospheric mirages. A graded photonic crystal presenting a superbending effect is proposed for designing a bent waveguide.
%G English
%L hal-00437540
%U https://hal.science/hal-00437540
%~ CNRS
%~ UNIV-MONTP2
%~ GES
%~ UNIV-MONTPELLIER
%~ UM1-UM2