Shear horizontal surface acoustic wave induced microfluidic flow

D. S. Brodie, Y. Q. Fu, Yan Li, Mansour Alghane, Robert Lewis Reuben, A. J. Walton

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)


In this letter, we demonstrate that surface acoustic waves (SAWs) excited on 36 degrees 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. (C) 2011 American Institute of Physics

Original languageEnglish
Article number153704
Number of pages3
JournalApplied Physics Letters
Issue number15
Publication statusPublished - 10 Oct 2011


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