| 摘要 |
In accordance with a particular embodiment of the present invention, a device for modulating an optical beam is provided. The device may include a substrate comprising a non-ferromagnetic material and a thin film comprising a ferromagnetic semiconductor material disposed on the substrate. The thin film may be disposed on the substrate such that at least part of an optical beam incident on the thin film at an angle reflects off of a surface of the thin film. The thin film may be responsive to a magnetic field applied to the thin film such that varying the magnetic field varies the polarization of the light beam reflected off of the surface of the thin film.
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