Bigyrotropic photonic crystals

Abstract

Electromagnetic wave propagation in a one-dimensional magnetic photonic crystal made of bigyrotropic magnetic yttrium-iron garnet and nonmagnetic gadolinium-gallium garnet is theoretically investigated using the 4×4 transfer matrix method for longitudinal magneto-optical configuration. Band gaps in the electromagnetic spectrum are numerically obtained and appear to depend on the helicity and direction of light propagation through the magnetic photonic crystal.