title: Optimization of all-garnet magneto-optical magnetic field sensors with genetic algorithm.
abstract: In this article, we introduce a simple magnetophotonic crystal structure for magnetic field sensing applications. Design procedure, which is performed using a global optimization tool called genetic algorithm, provides great flexibility for structures with layers having nonquarter-wavelength thickness. Results show that our proposed genetic sensor comparatively exhibits higher simplicity, sensitivity, and spatial resolution, with better photo-response and performance. We also analyze the underlying physical phenomenon responsible for such improvement by inspection of electric field distribution in the interior of the structure.
authors.affiliation: Laser and Plasma Research Institute, Shahid Beheshti University, Tehran, Iran.
authors.forename: Hossein
authors.initials: H
authors.lastname: Alisafaee
authors.forename: Majid
authors.initials: M
authors.lastname: Ghanaatshoar