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Transmitting high power rf acoustic radiation via fluid couplants into superstrates for microfluidics

  • Author(s): Hodgson, RP;
  • Tan, M;
  • Yeo, L;
  • Friend, J
  • et al.

Published Web Location

https://doi.org/10.1063/1.3049128
Abstract

In this study, surface acoustic radiation is refracted from lithium niobate through a fluid coupling into a thin glass plate. We demonstrate and explain its propagation as an asymmetric Lamb wave along the glass plate with sufficient power to transport fluid droplets across the glass surface at 8 mm/s. Such technology enables the use of standard processing techniques to fabricate an inexpensive and disposable microfluidics device together with the power transmission capabilities of surface acoustic wave devices with an easily renewable coupling. © 2009 American Institute of Physics.

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