Acoustic hook beam lens for particle trapping
- 1 June 2020
- journal article
- research article
- Published by IOP Publishing in Applied Physics Express
- Vol. 13 (6), 064003
- https://doi.org/10.35848/1882-0786/ab93a1
Abstract
We report the generation of acoustic hook beams by a holographic lens. Compared with the conventional method, the intensity of the hook beam is greatly improved and the bending position is adjustable. We further rotate the hook beam into a two-dimensional axisymmetric structure with a cavity in the middle, forming a self-healing bottle beam. As an experiment, the generated bottle beam is used to trap and manipulate a polystyrene particle in the center of the bottle in water. The self-healing property of the bottle beam may have potential applications in biomedical application to manipulate cells or tissues behind obstacles.Keywords
Funding Information
- National Natural Science Foundation of China (11774263 and 11834008)
- National Key Research and Development Program of China (2016YFA0100800)
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