We studied magnetophotonic crystals (MPCs) with introduced magnetic
defect layer sandwiched between magnetic and dielectric Bragg mirrors. These
magnetophotonic crystals have excellent capabilities to enhance reflection and Kerr
rotation simultaneously. By adjusting spatial configuration such as repetition numbers
of Bragg mirrors and thickness of magnetic defect layer, we achieved the Kerr rotation
angles more than 75˚ and reflection very close to 1. We briefly described the
formulation of finite element method (FEM) and transfer matrix method (TMM). The
electric field distribution and magnitude of it along the MPCs are simulated using FEM.
Using the TMM, we calculated the MO responses of MPCs. With light localization
inside the magnetic defect layer and multiple reflections in it, the magneto-optical (MO)
responses of these MPCs were significantly increased. The studied structures in this
research have high MO responses that make it suitable for designing MO elements in
highly sensitive devices and optical telecommunication tools. Manuscript profile