Abstract
We fabricated one-dimensional magnetophotonic crystals (1-D MPCs, hereafter) with single-cavity structures of (Ta2O5/SiO2) k/Bi: YIG/(SiO2/Ta2O5) k (k=2, 6). Their fundamental optical and magneto-optical fundamental properties were investigated in detail. We obtained experimental results that were in good agreement with the theoretical predictions: the Faraday rotation angle of the medium was more than 100 times larger than that of a Bi: YIG single-layer film. In addition, we performed numerical calculations by taking the optical dissipation effect into account, and the experimental results were examined. The optical dissipation was found to be a key parameter in determining the performance of 1-D MPCs apparatus. The Bi: YIG and dielectric films were deposited under the preparation conditions shown in Tables 1 and 2. The design wavelength was 720nm. Optical and magneto-optical properties of the prepared 1-D MPCs were calculated theoretically by solving Maxwell's equations with the bigyrotropic dielectric tensor for the magnetic layers under the electromagnetic boundary conditions imposed at all discontinuous planes. This is usually rather tedious, but is easily achieved by means of the matrix approach.
