(Received December 27, 2002; accepted for publication February 14, 2003)
The one-dimensional magnetophotonic crystals having a structure of (AB)kM(BA)k, where k is the number of stacking layer, M is Bi-substituted iron garnet with a Bi content of 0.5 and 1.07, and A and B are SiO2 and Ta2O5, respectively, were numerically simulated in the visible and near infrared wavelengths. The Faraday rotation angle, transmittance, and figure of merit, which was defined by T|sin 2θF|, of the one-dimensional magneto-photonic crystals (1D-MPCs) as a function of Bi content and the thickness of the magnetic garnet layer are presented. In the near infrared region, several hundred times larger Faraday rotation angle reaching 30–40 degrees and several ten times of figure of merit reaching 0.4–0.5 were obtained as compared to the garnet single layer. In particular, the figure of merit of the one-dimensional magnetophotonic crystals in the near infrared region was several times larger than that in the visible region.
KEYWORDS:photonic crystal, magnetophotonic crystal, Faraday rotation, garnet film