title: Magneto-optical circulator designed for operation in a uniform external magnetic field.
abstract: We propose an approach for the design of resonant cavities employed in magnetophotonic crystal (MPC) circulators and isolators. Starting from the analysis of a model circularly symmetric cavity, we show how to obtain a significant splitting of the eigenfrequencies of the two counterrotating cavity modes without introducing subdomains magnetized in opposite directions. Using the multiple-scattering method extended to handle uniaxial gyrotropic materials, we demonstrate numerically an MPC circulator working in a uniform external magnetic field.
authors.affiliation: Institut Fresnel, CNRS, Aix-Marseille Université, Ecole Centrale Marseille, Campus de St Jérôme, 13397 Marseille Cedex 20, France. wojciech.smigaj@fresnel.fr
authors.forename: Wojciech
authors.initials: W
authors.lastname: Smigaj
authors.forename: Javier
authors.initials: J
authors.lastname: Romero-Vivas
authors.forename: Boris
authors.initials: B
authors.lastname: Gralak
authors.forename: Liubov
authors.initials: L
authors.lastname: Magdenko
authors.forename: Béatrice
authors.initials: B
authors.lastname: Dagens
authors.forename: Mathias
authors.initials: M
authors.lastname: Vanwolleghem