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. Author manuscript; available in PMC: 2014 Apr 23.
Published in final edited form as: Lab Chip. 2011 Jun 27;11(14):2319–2324. doi: 10.1039/c1lc20042a

Fig. 1.

Fig. 1

(a) A photograph of the experimental apparatus is shown including a PDMS microchannel in between a pair of parallel IDTs. (b) A cross-section schematic of the microchannel and IDTs used to generate two SAWs travelling in the opposite direction. The leakage waves are radiated into the liquid phase under the Rayleigh angle (drawings are not in scale).