• Letter

Ultrasonic Extraction and Manipulation of Droplets from a Liquid-Liquid Interface with Near-Field Acoustic Tweezers

Robert Lirette, Joel Mobley, and Likun Zhang
Phys. Rev. Applied 12, 061001 – Published 16 December 2019
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Abstract

We report the extraction, capture, and manipulation of a droplet from a liquid-liquid surface using the acoustic near field from a fraxicon lens transducer. The lens is submerged in water, which shares a planar boundary with a reservoir of carbon tetrachloride (CCl4). The ultrasonic beam exerts a negative radiation pressure, drawing the CCl4 up into the water, and a droplet of wavelength order is extracted out of the bulk liquid and sonically trapped. Our work demonstrates the means of producing and manipulating droplets from a fluid interface without mechanical contact using a near-field acoustic tweezer.

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  • Received 7 September 2019
  • Revised 13 November 2019

DOI:https://doi.org/10.1103/PhysRevApplied.12.061001

© 2019 American Physical Society

Physics Subject Headings (PhySH)

Nonlinear DynamicsFluid Dynamics

Authors & Affiliations

Robert Lirette*, Joel Mobley, and Likun Zhang

  • Department of Physics and Astronomy and the National Center for Physical Acoustics, The University of Mississippi, University, Mississippi 38677, USA

  • *rlirette@go.olemiss.edu
  • jmobley@olemiss.edu
  • zhang@olemiss.edu

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Issue

Vol. 12, Iss. 6 — December 2019

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