Because the grating is continuously moving, the output light has a frequency shift equal to the frequency of the sound wave. This grating can therefore be used either to steer a beam, modulate its ...

Chaplain, G.J., Hawkins, S.C., Peter, M.A. et al., Acoustic lattice resonances and generalised Rayleigh-Bloch waves. Commun Phys 8, 37 (2025): https://doi.org/10.1038/s42005-025-01950-4 ...