Mesoscopic self-collimation and slow light in all-positive index layered photonic crystals |
| |
Authors: | Arlandis Julien Centeno Emmanuel Pollès Rémi Moreau Antoine Campos Julien Gauthier-Lafaye Olivier Monmayrant Antoine |
| |
Institution: | LASMEA UMR-CNRS 6602, Université Clermont-Ferrand II, Campus des Cézeaux, 24, Avenue des Landais, 63177 Aubière Cedex, France. |
| |
Abstract: | We demonstrate a mesoscopic self-collimation effect in photonic crystal superlattices consisting of a periodic set of all-positive index 2D photonic crystal and homogeneous layers. We develop an electromagnetic theory showing that diffraction-free beams are observed when the curvature of the optical dispersion relation is properly compensated for. This approach allows us to combine slow-light regime together with self-collimation in photonic crystal superlattices presenting an extremely low filling ratio in air. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|