Creation of acoustic vortex knots
Hongkuan Zhang, Weixuan Zhang, Yunhong Liao and 4 more
Nature Communications · 2020
doi:10.1038/s41467-020-17744-x (opens in a new tab)
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Abstract
Although knots in complex optical fields have been realized experimentally, the realization of acoustic vortex knots is still problematic. Here, the authors have demonstrated the creation of acoustic vortex knots by embedding the knot function into a propagating acoustic field using a metasurface hologram.
Abstract licence: CC BY-NC-ND
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