Short period, femtosecond transient gratings in a sample can now be produced by X-rays. The approach promises to reveal the excitation behaviour of complex materials with high temporal and spatial resolution.
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Beye, M. Transient gratings with X-rays. Nat. Photon. 15, 490–492 (2021). https://doi.org/10.1038/s41566-021-00837-4
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DOI: https://doi.org/10.1038/s41566-021-00837-4
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