16 September 2014 Hybrid optical and acoustic force based sorting
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We report the combined use of optical sorting and acoustic levitation to give particle sorting. Differing sizes of microparticles are sorted optically both with and without the aid of acoustic levitation, and the results compared to show that the use of acoustic trapping can increase sorting efficiency. The use of a transparent ultrasonic transducer is also shown to streamline the integration of optics and acoustics. We also demonstrate the balance of optical radiation pressure and acoustic levitation to achieve vertical sorting.
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Paul O'Mahoney, Paul O'Mahoney, Graham W. Brodie, Graham W. Brodie, Han Wang, Han Wang, Christine E. M. Demore, Christine E. M. Demore, Sandy Cochran, Sandy Cochran, Gabriel C. Spalding, Gabriel C. Spalding, Michael P. MacDonald, Michael P. MacDonald, "Hybrid optical and acoustic force based sorting", Proc. SPIE 9164, Optical Trapping and Optical Micromanipulation XI, 916421 (16 September 2014); doi: 10.1117/12.2064276; https://doi.org/10.1117/12.2064276


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