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Interactive manipulation of microparticles in an octagonal sonotweezer
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10.1063/1.4802754
/content/aip/journal/apl/102/16/10.1063/1.4802754
http://aip.metastore.ingenta.com/content/aip/journal/apl/102/16/10.1063/1.4802754
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) Photograph of the octagonal tweezers. (b) Diagram showing eight sources of plane waves, labelled n = 1, 2, 3,… N = 8. Arrows indicate direction of propagation of the waves, which are directed at an angle θn to the x-axis. The coordinate system used for the translation of the pattern by R is also shown.

Image of FIG. 2.
FIG. 2.

Computer simulations and experimental observations of the acoustic landscape obtained with (a) two, (b), (c) four, (d) six, and (e) eight transducers when they are excited in phase. For each figure the simulation is on the left, and the experimental result using 10 μm polystyrene beads is on the right. The active transducers are shown in red bold line on the simulation. In the simulation the acoustic potential energy maxima are white, and the acoustic potential energy minima are black (scale bar = 100 μm for the right-hand images).

Image of FIG. 3.
FIG. 3.

Computer simulations and experimental observations of the acoustic landscape obtained with (a) two, (b) four, (c) six transducers excited simultaneously with a phase delay. For each figure the simulation is on the left, and the experimental result using 10 μm polystyrene beads is on the right. The active transducers are shown in red bold line on the simulation. In the simulation the acoustic potential energy maxima are white, and the acoustic potential energy minima are black (scale bar = 100 μm for the right-hand images).

Image of FIG. 4.
FIG. 4.

Computer simulation (left) and experimental micrograph (right) when 8 transducers are simultaneously excited with υ = 3 (scale bar = 100 μm for the right-hand image).

Image of FIG. 5.
FIG. 5.

Displacement of the centre trap by adjusting the phase of eight transducers (a) coordinate position (0, 0), (b) position (−50 μm, 0), (c) position (−50 μm, −50 μm), (d) position (0, −50 μm).

Image of FIG. 6.
FIG. 6.

Overlay of micrographs taken at different relative phase shifts of the 8 transducers demonstrating the manipulation of the main trap (a) from coordinate (0, 0) to (−50 μm, 0), (b) from (−50 μm, 0) to (−50 μm, −50 μm), and (c) from (−50 μm, 50 μm) to (0, 0).

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/content/aip/journal/apl/102/16/10.1063/1.4802754
2013-04-22
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Interactive manipulation of microparticles in an octagonal sonotweezer
http://aip.metastore.ingenta.com/content/aip/journal/apl/102/16/10.1063/1.4802754
10.1063/1.4802754
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