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Design cross section of a self-focused needle transducer.
(a) Measured pulse-echo waveform (solid line) and normalized frequency spectrum (dashed line). (b) Measured lateral beam profile.
In vitro UBM image of the anterior portion of a rabbit eye.
Block diagram of acoustic trapping experiment using the self-focused needle transducer.
Measured maximum displacements as a function of frequency with different excitation voltages.
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