Faraday rotation of a magnetophotonic crystal with the dual-cavity structure

We demonstrated optical properties of a one-dimensional magnetophotonic crystal (MPC) which comprises two magnetic defects built into a dielectric multilayer. This MPC with the so-called dual-cavity structure exhibited resonant transmittance and enhancement of the Faraday rotation at a designed wavelength. A double peak that is intrinsic feature of dual cavities was observed in the spectrum of the Faraday rotation. However, the peak of resonant transmission had a bell-type shape. These results are in agreement with our theoretical consideration where a structural disorder in the experimental sample was taken into account. (C) 2010 American Institute of Physics. [doi:10.1063/1.3365431]