Courtney, C. R. P., Demore, C. E. M., Wu, H., Grinenko, A., Wilcox, P. D., Cochran, S. and Drinkwater, B. W. (2014) Independent trapping and manipulation of microparticles using dexterous acoustic tweezers. Applied Physics Letters, 104(15), 154103. (doi: 10.1063/1.4870489)
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Abstract
An electronically controlled acoustic tweezer was used to demonstrate two acoustic manipulation phenomena: superposition of Bessel functions to allow independent manipulation of multiple particles and the use of higher-order Bessel functions to trap particles in larger regions than is possible with first-order traps. The acoustic tweezers consist of a circular 64-element ultrasonic array operating at 2.35 MHz which generates ultrasonic pressure fields in a millimeter-scale fluid-filled chamber. The manipulation capabilities were demonstrated experimentally with 45 and 90-μm-diameter polystyrene spheres. These capabilities bring the dexterity of acoustic tweezers substantially closer to that of optical tweezers.
Item Type: | Articles |
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Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Cochran, Professor Sandy |
Authors: | Courtney, C. R. P., Demore, C. E. M., Wu, H., Grinenko, A., Wilcox, P. D., Cochran, S., and Drinkwater, B. W. |
College/School: | College of Science and Engineering > School of Engineering > Systems Power and Energy |
Journal Name: | Applied Physics Letters |
Publisher: | American Institute of Physics |
ISSN: | 0003-6951 |
ISSN (Online): | 1077-3118 |
Published Online: | 17 April 2014 |
Copyright Holders: | Copyright © 2014 AIP Publishing LLC |
First Published: | First published in Applied Physics Letters 104(15):154103 |
Publisher Policy: | Reproduced in accordance with the copyright policy of the publisher |
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