We have explored the use of a magneto-optical diffraction grating, in the form of a YIG (Y3Fe5O12) continuous film, as a mean of controlling light with mesoscale magnetic textures. The existence of a periodicity for the out-of-plane magnetic component opens up the possibility of using the film as a magneto-optical diffraction grating. For incident light linearly-polarized along the stripe direction, the Faraday rotation yields a polarization profile of the transmitted light characterized by a uniform distribution along the direction parallel to the stripes and a periodic phase-reversal texture along the corresponding orthogonal direction. The interference pattern resulting from the latter gives rise to magnetic Bragg peaks, in good agreement with the Fourier transform of the real-space magnetic domain texture recorded with Kerr microscopy. These results highlight the potential of controlling the scattering of light by employing and tailoring meso-scale magnetic textures.
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