Numerical simulation of the radiation force from transient acoustic fields: Application to laser-guided acoustic tweezers

2023/01/09 by Shuhan Chen, Chen, Shuhan, Qing Wang +7
Engineering · Physics and Astronomy · #Advanced MEMS and NEMS Technologies #FOS: Physical sciences #Fluid Dynamics (physics.flu-dyn) #Mechanical and Optical Resonators #Microfluidic and Bio-sensing Technologies #Optics (physics.optics)

paper · pdf · doi:10.48550/arxiv.2301.03678

openalex publication_date 2023/01/09 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Using pulsed acoustic waves could provide a superior selectivity for microscale acoustic tweezers. However, the theory for the radiation force of pulsed acoustic waves has only been recently derived and no numerical implementations are available. In this paper, we present a finite-element implementation of this model to simulate the transient acoustic radiation force on small spheres. We use the model to simulate laser-guided acoustic tweezers and optimize their performance. By enabling numerical simulations of the transient radiation force, this work may accelerate the rational design of pulse-based high-selectivity acoustic tweezers devices.

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