Abstract
To investigate the potential of magnetophotonic crystal for use in optical isolators, theoretical and experimental studies were carried out. The calculations revealed that the required optical isolator performance (reflectance R 95% and Kerr rotation θK 45°) can be achieved with a reflection-type one-dimensional mgnetophotonic crystal (1D-MPC) having only one thin magnetic layer. Provided that a dielectric multilayer film and an Al film are used in combination as the reflection layer, the structure of 1D-MPC satisfying the isolator requirements becomes much simpler than that of the transmission-mode 1D-MPC. This is indeed very attractive for fabrication of actual isolators.
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