CPC B01L 3/0268 (2013.01) [H01J 49/0454 (2013.01); B01L 2200/0642 (2013.01); B01L 2200/141 (2013.01); B01L 2400/0436 (2013.01)] | 23 Claims |
1. A method of creating a subwavelength droplet, the method comprising:
applying a first toneburst of focused acoustic radiation in a first acoustic beam to a fluid sample sufficient to raise a mound on a free surface of the fluid sample, the first toneburst having a first center frequency, and
applying a second toneburst of focused acoustic radiation in a second acoustic beam to the fluid sample sufficient to eject a first subwavelength droplet from the mound, the second toneburst having a second center frequency, wherein a droplet size distribution of a plurality of subwavelength droplets is controllable by controlling at least one of the first center frequency and the second center frequency.
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