Transmitting high power rf acoustic radiation via fluid couplants into superstrates for microfluidics
- 12 January 2009
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 94 (2), 024102
- 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 wavedevices with an easily renewable coupling.Keywords
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