Shear horizontal surface acoustic wave induced microfluidic flow

Brodie, D. S., Fu, Yong Qing, Li, Yifan, Alghane, M., Reuben, Robert and Walton, Anthony (2011) Shear horizontal surface acoustic wave induced microfluidic flow. Applied Physics Letters, 99 (15). p. 153704. ISSN 0003-6951

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Official URL: http://dx.doi.org/10.1063/1.3651487

Abstract

In this letter, we demonstrate that surface acoustic waves(SAWs) excited on 36°Y-X LiTaO3 have both Rayleigh and shear horizontal components, which can result in different acoustic streaming patterns in micro-droplets. The shear horizontal surface acoustic wave streaming pattern exhibits a quasi-stable counterflow in the SAW propagation direction with velocities of up to 16 mm/s, with minimal damping observed within the droplets. A pumping function was realized at a threshold power of 30 dBm with a large rotation vector on hydrophobically treated devices.

Item Type: Article
Subjects: F200 Materials Science
F300 Physics
H600 Electronic and Electrical Engineering
Department: Faculties > Engineering and Environment > Mechanical and Construction Engineering
Depositing User: Yifan Li
Date Deposited: 26 Feb 2015 11:57
Last Modified: 15 Mar 2016 12:55
URI: http://nrl.northumbria.ac.uk/id/eprint/21242

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