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research article

Wave-momentum shaping for moving objects in heterogeneous and dynamic media

Orazbayev, Bakhtiyar  
•
Malléjac, Matthieu  
•
Bachelard, Nicolas
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June 21, 2024
Nature Physics

Light and sound waves can move objects through the transfer of linear or angular momentum, which has led to the development of optical and acoustic tweezers, with applications ranging from biomedical engineering to quantum optics. Although impressive manipulation results have been achieved, the stringent requirement for a highly controlled, low-reverberant and static environment still hinders the applicability of these techniques in many scenarios. Here we overcome this challenge and demonstrate the manipulation of objects in disordered and dynamic media by optimally tailoring the momentum of sound waves iteratively in the far field. The method does not require information about the object’s physical properties or the spatial structure of the surrounding medium but relies only on a real-time scattering matrix measurement and a positional guide-star. Our experiment demonstrates the possibility of optimally moving and rotating objects to extend the reach of wave-based object manipulation to complex and dynamic scattering media. We envision new opportunities for biomedical applications, sensing and manufacturing.

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Type
research article
DOI
10.1038/s41567-024-02538-5
Author(s)
Orazbayev, Bakhtiyar  
Malléjac, Matthieu  
Bachelard, Nicolas
Rotter, Stefan
Fleury, Romain  
Date Issued

2024-06-21

Published in
Nature Physics
Subjects

wave front shaping

•

micromanipulation

•

translation

•

rotations

•

acoustics

URL

arXiv preprint

https://arxiv.org/abs/2401.00853
Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LWE  
FunderGrant Number

FNS

CRSK-2_190728

Available on Infoscience
June 21, 2024
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/208836
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