Spin waves show promise as a means of transporting information in integrated magnetic devices, but convenient ways to control their properties are required. Now directional control of spin-wave emission using photonics has been demonstrated in an all-optical pump–probe experiment.
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Freeman, M., Diao, Z. All-optical spin-wave control. Nature Photon 6, 643–645 (2012). https://doi.org/10.1038/nphoton.2012.241
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DOI: https://doi.org/10.1038/nphoton.2012.241