Acoustic orbital angular momentum transfer to matter by chiral scattering

Acoustic orbital angular momentum transfer to matter by chiral scattering

Blog Article

We report on orbital angular momentum exchange between sound and matter mediated by a non-dissipative chiral scattering process.An experimental demonstration is made possible by irradiating a three-dimensional printed, spiral-shaped chiral object with an incident ultrasonic End Table beam carrying zero orbital angular momentum.Chiral refraction is shown Coaxial Tools to impart a nonzero orbital angular momentum to the scattered field and to rotate the object.

This result constitutes a proof of concept of a novel kind of acoustic angular manipulation of matter.