Dexterous manipulation of microparticles using Bessel-function acoustic pressure fields

C.R.P. Courtney, B.W. Drinkwater, A. Grinenko, P.D. Wilcox, C.E.M. Demore, S. Cochran

Research output: Contribution to journalArticle

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Abstract

We show that Bessel-function acoustic pressure fields can be used to trap and controllably position microparticles. A circular, 16-element ultrasound array generates and manipulates an acoustic field within a chamber, trapping microparticles and agglomerates. Changes in the phase of the sinusoidal signals applied to the array elements result in the movement of the Bessel-function pressure field and hence the microparticles. This demonstrates ultrasonic manipulation analogous to holographic optical tweezers. The manipulation limits of the device are explained by the existence of unwanted resonances within the manipulation chamber.
Original languageEnglish
Article number123508
JournalApplied Physics Letters
Volume102
Issue number12
DOIs
Publication statusPublished - 25 Mar 2013

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Bessel functions
microparticles
pressure distribution
manipulators
acoustics
chambers
ultrasonics
trapping
traps

Cite this

Courtney, C. R. P., Drinkwater, B. W., Grinenko, A., Wilcox, P. D., Demore, C. E. M., & Cochran, S. (2013). Dexterous manipulation of microparticles using Bessel-function acoustic pressure fields. Applied Physics Letters, 102(12), [123508]. https://doi.org/10.1063/1.4798584

Dexterous manipulation of microparticles using Bessel-function acoustic pressure fields. / Courtney, C.R.P.; Drinkwater, B.W.; Grinenko, A.; Wilcox, P.D.; Demore, C.E.M.; Cochran, S.

In: Applied Physics Letters, Vol. 102, No. 12, 123508, 25.03.2013.

Research output: Contribution to journalArticle

Courtney, CRP, Drinkwater, BW, Grinenko, A, Wilcox, PD, Demore, CEM & Cochran, S 2013, 'Dexterous manipulation of microparticles using Bessel-function acoustic pressure fields', Applied Physics Letters, vol. 102, no. 12, 123508. https://doi.org/10.1063/1.4798584
Courtney, C.R.P. ; Drinkwater, B.W. ; Grinenko, A. ; Wilcox, P.D. ; Demore, C.E.M. ; Cochran, S. / Dexterous manipulation of microparticles using Bessel-function acoustic pressure fields. In: Applied Physics Letters. 2013 ; Vol. 102, No. 12.
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