Using high-frequency sound waves to make tunable optical filters, modulators and Q-switches is a well-established and convenient technological solution for many applications, reports Neil Savage.
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Savage, N. Acousto-optic devices. Nature Photon 4, 728–729 (2010). https://doi.org/10.1038/nphoton.2010.229
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DOI: https://doi.org/10.1038/nphoton.2010.229
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