Abstract
We developed a magneto-optic spatial light modulator (MOSLM), for all visible wavelengths, using amorphous rare earth-transition metal (RE-TM) film. The magneto-optical elements (pixels) were made of amorphous DyFe films with perpendicular magnetic anisotropy. The the amorphous DyFe film was determined to have 22 atom percent Dy, and the Curie temperature (Tc) was found to be 343 K. For magnetic switching in this MOSLM, heating to the Curie temperature (Tc) by using a laser radiation density of 5 mJ/cm 2 and a driving current of 1 mA at all visible wavelengths were needed. In addition, we confirmed the switching speed of pixels for various laser radiation densities.
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